22012102211112 has 128 divisors (see below), whose sum is σ = 65851123968000. Its totient is φ = 6772650589440.

The previous prime is 22012102211101. The next prime is 22012102211117. The reversal of 22012102211112 is 21111220121022.

22012102211112 is a `hidden beast` number, since 220 + 1 + 210 + 221 + 1 + 1 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22012102211117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66972537 + ... + 67300407.

It is an arithmetic number, because the mean of its divisors is an integer number (514461906000).

Almost surely, 2^{22012102211112} is an apocalyptic number.

It is an amenable number.

22012102211112 is an abundant number, since it is smaller than the sum of its proper divisors (43839021756888).

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

22012102211112 is a wasteful number, since it uses less digits than its factorization.

22012102211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351808 (or 351798 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22012102211112 its reverse (21111220121022), we get a palindrome (43123322332134).

The spelling of 22012102211112 in words is "twenty-two trillion, twelve billion, one hundred two million, two hundred eleven thousand, one hundred twelve".