| Base | Representation |
|---|---|
| bin | 100000010101100110101… |
| … | …100011100111101011100 |
| 3 | 21212102221101220100210000 |
| 4 | 200111212230130331130 |
| 5 | 242402102040133040 |
| 6 | 4420512500414300 |
| 7 | 316356465005640 |
| oct | 40254654347534 |
| 9 | 7772841810700 |
| 10 | 2222221021020 |
| 11 | 787490918a70 |
| 12 | 2ba8213a7390 |
| 13 | 13172943c8a0 |
| 14 | 797adc06c20 |
| 15 | 3cc1218d130 |
| hex | 20566b1cf5c |
2222221021020 has 960 divisors, whose sum is σ = 9492240586752. Its totient is φ = 420215040000.
The previous prime is 2222221020997. The next prime is 2222221021021. The reversal of 2222221021020 is 201201222222.
2222221021020 is a `hidden beast` number, since 2 + 2 + 222 + 210 + 210 + 20 = 666.
2222221021020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 2222221020984 and 2222221021002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2222221021021) by changing a digit.
It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 115125370 + ... + 115144670.
Almost surely, 22222221021020 is an apocalyptic number.
2222221021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2222221021020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4746120293376).
2222221021020 is an abundant number, since it is smaller than the sum of its proper divisors (7270019565732).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2222221021020 is a wasteful number, since it uses less digits than its factorization.
2222221021020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19424 (or 19413 counting only the distinct ones).
The product of its (nonzero) digits is 256, while the sum is 18.
Adding to 2222221021020 its reverse (201201222222), we get a palindrome (2423422243242).
The spelling of 2222221021020 in words is "two trillion, two hundred twenty-two billion, two hundred twenty-one million, twenty-one thousand, twenty".
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