22232556788 has 12 divisors (see below), whose sum is σ = 41899818660. Its totient is φ = 10261180032.

The previous prime is 22232556779. The next prime is 22232556791. The reversal of 22232556788 is 88765523222.

It can be written as a sum of positive squares in 2 ways, for example, as 14675384164 + 7557172624 = 121142^2 + 86932^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213774533 + ... + 213774636.

It is an arithmetic number, because the mean of its divisors is an integer number (3491651555).

Almost surely, 2^22232556788 is an apocalyptic number.

It is an amenable number.

22232556788 is a deficient number, since it is larger than the sum of its proper divisors (19667261872).

22232556788 is a wasteful number, since it uses less digits than its factorization.

22232556788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427549186 (or 427549184 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 50.

The spelling of 22232556788 in words is "twenty-two billion, two hundred thirty-two million, five hundred fifty-six thousand, seven hundred eighty-eight".