22012200012212 has 96 divisors (see below), whose sum is σ = 45101393568000. Its totient is φ = 9323814500352.

The previous prime is 22012200012181. The next prime is 22012200012221. The reversal of 22012200012212 is 21221000221022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1941938 + ... + 6913430.

It is an arithmetic number, because the mean of its divisors is an integer number (469806183000).

Almost surely, 2^{22012200012212} is an apocalyptic number.

It is an amenable number.

22012200012212 is an abundant number, since it is smaller than the sum of its proper divisors (23089193555788).

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

22012200012212 is a wasteful number, since it uses less digits than its factorization.

22012200012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4971705 (or 4971703 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22012200012212 its reverse (21221000221022), we get a palindrome (43233200233234).

The spelling of 22012200012212 in words is "twenty-two trillion, twelve billion, two hundred million, twelve thousand, two hundred twelve".