12220602164 has 24 divisors (see below), whose sum is σ = 21867390720. Its totient is φ = 5973089696.

The previous prime is 12220602143. The next prime is 12220602181. The reversal of 12220602164 is 46120602221.

It is a super-2 number, since 2×12220602164² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118994 + ... + 196470.

It is an arithmetic number, because the mean of its divisors is an integer number (911141280).

Almost surely, 2^12220602164 is an apocalyptic number.

It is an amenable number.

12220602164 is a deficient number, since it is larger than the sum of its proper divisors (9646788556).

12220602164 is a wasteful number, since it uses less digits than its factorization.

12220602164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78367 (or 78365 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 12220602164 in words is "twelve billion, two hundred twenty million, six hundred two thousand, one hundred sixty-four".