22245552172 has 12 divisors (see below), whose sum is σ = 39422498080. Its totient is φ = 10981981296.

The previous prime is 22245552169. The next prime is 22245552179. The reversal of 22245552172 is 27125554222.

It is not an unprimeable number, because it can be changed into a prime (22245552179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35198343 + ... + 35198974.

Almost surely, 2^22245552172 is an apocalyptic number.

It is an amenable number.

22245552172 is a deficient number, since it is larger than the sum of its proper divisors (17176945908).

22245552172 is a wasteful number, since it uses less digits than its factorization.

22245552172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70397400 (or 70397398 counting only the distinct ones).

The product of its digits is 112000, while the sum is 37.

The spelling of 22245552172 in words is "twenty-two billion, two hundred forty-five million, five hundred fifty-two thousand, one hundred seventy-two".