22101010021012 has 48 divisors (see below), whose sum is σ = 43122677850000. Its totient is φ = 9840839823360.

The previous prime is 22101010020989. The next prime is 22101010021063. The reversal of 22101010021012 is 21012001010122.

It can be written as a sum of positive squares in 8 ways, for example, as 72217962756 + 22028792058256 = 268734^2 + 4693484^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 22101010020983 and 22101010021001.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3983539 + ... + 7750522.

It is an arithmetic number, because the mean of its divisors is an integer number (898389121875).

Almost surely, 2^{22101010021012} is an apocalyptic number.

It is an amenable number.

22101010021012 is a deficient number, since it is larger than the sum of its proper divisors (21021667828988).

22101010021012 is a wasteful number, since it uses less digits than its factorization.

22101010021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11735356 (or 11735354 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22101010021012 its reverse (21012001010122), we get a palindrome (43113011031134).

The spelling of 22101010021012 in words is "twenty-two trillion, one hundred one billion, ten million, twenty-one thousand, twelve".