22170563252 has 6 divisors (see below), whose sum is σ = 38798485698. Its totient is φ = 11085281624.

The previous prime is 22170563237. The next prime is 22170563321. The reversal of 22170563252 is 25236507122.

It can be written as a sum of positive squares in only one way, i.e., 21991110436 + 179452816 = 148294^2 + 13396^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2771320403 + ... + 2771320410.

It is an arithmetic number, because the mean of its divisors is an integer number (6466414283).

Almost surely, 2^22170563252 is an apocalyptic number.

It is an amenable number.

22170563252 is a deficient number, since it is larger than the sum of its proper divisors (16627922446).

22170563252 is a wasteful number, since it uses less digits than its factorization.

22170563252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5542640817 (or 5542640815 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 22170563252 in words is "twenty-two billion, one hundred seventy million, five hundred sixty-three thousand, two hundred fifty-two".