22110112012212 has 72 divisors (see below), whose sum is σ = 63876711080000. Its totient is φ = 6316872801408.

The previous prime is 22110112012207. The next prime is 22110112012213. The reversal of 22110112012212 is 21221021101122.

22110112012212 is a `hidden beast` number, since 221 + 10 + 11 + 201 + 221 + 2 = 666.

It is a super-2 number, since 2×22110112012212² (a number of 27 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22110112012213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3209664 + ... + 7383912.

Almost surely, 2^{22110112012212} is an apocalyptic number.

It is an amenable number.

22110112012212 is an abundant number, since it is smaller than the sum of its proper divisors (41766599067788).

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

22110112012212 is a wasteful number, since it uses less digits than its factorization.

22110112012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4195285 (or 4195280 counting only the distinct ones).

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

Adding to 22110112012212 its reverse (21221021101122), we get a palindrome (43331133113334).

The spelling of 22110112012212 in words is "twenty-two trillion, one hundred ten billion, one hundred twelve million, twelve thousand, two hundred twelve".