22112012112012 has 30 divisors (see below), whose sum is σ = 57805167466508. Its totient is φ = 7370670703896.

The previous prime is 22112012111993. The next prime is 22112012112013. The reversal of 22112012112012 is 21021121021122.

22112012112012 is a `hidden beast` number, since 221 + 1 + 201 + 211 + 20 + 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 (22112012112013) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 34123475158 + ... + 34123475805.

Almost surely, 2^{22112012112012} is an apocalyptic number.

It is an amenable number.

22112012112012 is an abundant number, since it is smaller than the sum of its proper divisors (35693155354496).

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

22112012112012 is a wasteful number, since it uses less digits than its factorization.

22112012112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68246950979 (or 68246950968 counting only the distinct ones).

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

Adding to 22112012112012 its reverse (21021121021122), we get a palindrome (43133133133134).

The spelling of 22112012112012 in words is "twenty-two trillion, one hundred twelve billion, twelve million, one hundred twelve thousand, twelve".