22100010021021 has 16 divisors (see below), whose sum is σ = 31018066084800. Its totient is φ = 13957672393728.

The previous prime is 22100010020971. The next prime is 22100010021043. The reversal of 22100010021021 is 12012001000122.

It is not a de Polignac number, because 22100010021021 - 2¹⁴ = 22100010004637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22100010020988 and 22100010021006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100010021071) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 368125 + ... + 6658493.

It is an arithmetic number, because the mean of its divisors is an integer number (1938629130300).

Almost surely, 2^{22100010021021} is an apocalyptic number.

It is an amenable number.

22100010021021 is a deficient number, since it is larger than the sum of its proper divisors (8918056063779).

22100010021021 is a wasteful number, since it uses less digits than its factorization.

22100010021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6352028.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22100010021021 its reverse (12012001000122), we get a palindrome (34112011021143).

The spelling of 22100010021021 in words is "twenty-two trillion, one hundred billion, ten million, twenty-one thousand, twenty-one".