22170774028 has 36 divisors (see below), whose sum is σ = 42990062808. Its totient is φ = 9994682880.

The previous prime is 22170774019. The next prime is 22170774049. The reversal of 22170774028 is 82047707122.

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, 352293 + ... + 410428.

Almost surely, 2^22170774028 is an apocalyptic number.

It is an amenable number.

22170774028 is a deficient number, since it is larger than the sum of its proper divisors (20819288780).

22170774028 is a wasteful number, since it uses less digits than its factorization.

22170774028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762794 (or 762779 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 40.

The spelling of 22170774028 in words is "twenty-two billion, one hundred seventy million, seven hundred seventy-four thousand, twenty-eight".