22111100010021 has 32 divisors (see below), whose sum is σ = 32587907328000. Its totient is φ = 13223238612480.

The previous prime is 22111100010019. The next prime is 22111100010037. The reversal of 22111100010021 is 12001000111122.

It is not a de Polignac number, because 22111100010021 - 2¹ = 22111100010019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22111100009979 and 22111100010006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111100010011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1925130 + ... + 6923028.

It is an arithmetic number, because the mean of its divisors is an integer number (1018372104000).

Almost surely, 2^{22111100010021} is an apocalyptic number.

It is an amenable number.

22111100010021 is a deficient number, since it is larger than the sum of its proper divisors (10476807317979).

22111100010021 is a wasteful number, since it uses less digits than its factorization.

22111100010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999689.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 22111100010021 its reverse (12001000111122), we get a palindrome (34112100121143).

The spelling of 22111100010021 in words is "twenty-two trillion, one hundred eleven billion, one hundred million, ten thousand, twenty-one".