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2020202222220 = 223257213313715361
BaseRepresentation
bin11101011001011101011…
…011111001001010001100
321011010111100220001221200
4131121131123321022030
5231044333232102340
64144022412425500
7265645331363100
oct35313533711214
97133440801850
102020202222220
11709843540406
12287641778290
13118672ac3910
146dac7975900
153783b891330
hex1d65d6f928c

2020202222220 has 864 divisors, whose sum is σ = 8139109095936. Its totient is φ = 401316249600.

The previous prime is 2020202222167. The next prime is 2020202222279. The reversal of 2020202222220 is 222222020202.

2020202222220 is a `hidden beast` number, since 2 + 0 + 20 + 202 + 222 + 220 = 666.

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 = 2020202222193 and 2020202222202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 131507340 + ... + 131522700.

Almost surely, 22020202222220 is an apocalyptic number.

2020202222220 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 2020202222220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4069554547968).

2020202222220 is an abundant number, since it is smaller than the sum of its proper divisors (6118906873716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2020202222220 is a wasteful number, since it uses less digits than its factorization.

2020202222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15471 (or 15459 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 2020202222220 its reverse (222222020202), we get a palindrome (2242424242422).

It can be divided in two parts, 2020202 and 222220, that added together give a palindrome (2242422).

The spelling of 2020202222220 in words is "two trillion, twenty billion, two hundred two million, two hundred twenty-two thousand, two hundred twenty".