22172002056 has 48 divisors (see below), whose sum is σ = 60068277360. Its totient is φ = 7388316000.

The previous prime is 22172002043. The next prime is 22172002087. The reversal of 22172002056 is 65020027122.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186711 + ... + 281433.

It is an arithmetic number, because the mean of its divisors is an integer number (1251422445).

Almost surely, 2^22172002056 is an apocalyptic number.

It is an amenable number.

22172002056 is an abundant number, since it is smaller than the sum of its proper divisors (37896275304).

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

22172002056 is a wasteful number, since it uses less digits than its factorization.

22172002056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97986 (or 97979 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

Adding to 22172002056 its reverse (65020027122), we get a palindrome (87192029178).

The spelling of 22172002056 in words is "twenty-two billion, one hundred seventy-two million, two thousand, fifty-six".