72213271324 has 12 divisors (see below), whose sum is σ = 126445326784. Its totient is φ = 36086035104.

The previous prime is 72213271303. The next prime is 72213271357. The reversal of 72213271324 is 42317231227.

It is a self number, because there is not a number n which added to its sum of digits gives 72213271324.

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, 5142252 + ... + 5156275.

Almost surely, 2^72213271324 is an apocalyptic number.

It is an amenable number.

72213271324 is a deficient number, since it is larger than the sum of its proper divisors (54232055460).

72213271324 is a wasteful number, since it uses less digits than its factorization.

72213271324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10300284 (or 10300282 counting only the distinct ones).

The product of its digits is 28224, while the sum is 34.

The spelling of 72213271324 in words is "seventy-two billion, two hundred thirteen million, two hundred seventy-one thousand, three hundred twenty-four".