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10220022021 = 311309697637
BaseRepresentation
bin10011000010010100…
…10010100100000101
3222101020202220121010
421201022102210011
5131412311201041
64410042312433
7511155516366
oct114112224405
928336686533
1010220022021
114374a328a0
121b927b8719
13c6b464c11
146cd477b6d
153ec36ea16
hex261292905

10220022021 has 8 divisors (see below), whose sum is σ = 14865486624. Its totient is φ = 6193952720.

The previous prime is 10220021957. The next prime is 10220022031. The reversal of 10220022021 is 12022002201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10220022021 - 26 = 10220021957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10220021988 and 10220022006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220022031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154848786 + ... + 154848851.

It is an arithmetic number, because the mean of its divisors is an integer number (1858185828).

Almost surely, 210220022021 is an apocalyptic number.

10220022021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10220022021 is a deficient number, since it is larger than the sum of its proper divisors (4645464603).

10220022021 is a wasteful number, since it uses less digits than its factorization.

10220022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309697651.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 10220022021 its reverse (12022002201), we get a palindrome (22242024222).

The spelling of 10220022021 in words is "ten billion, two hundred twenty million, twenty-two thousand, twenty-one".

Divisors: 1 3 11 33 309697637 929092911 3406674007 10220022021