2172205372 has 12 divisors (see below), whose sum is σ = 3889763416. Its totient is φ = 1060844400.

The previous prime is 2172205351. The next prime is 2172205391. The reversal of 2172205372 is 2735022712.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 6314379 + ... + 6314722.

Almost surely, 2^2172205372 is an apocalyptic number.

It is an amenable number.

2172205372 is a deficient number, since it is larger than the sum of its proper divisors (1717558044).

2172205372 is a wasteful number, since it uses less digits than its factorization.

2172205372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12629148 (or 12629146 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 2172205372 is about 46606.9240778664. The cubic root of 2172205372 is about 1295.0910272274.

The spelling of 2172205372 in words is "two billion, one hundred seventy-two million, two hundred five thousand, three hundred seventy-two".