72217708606212 has 48 divisors (see below), whose sum is σ = 182053644968832. Its totient is φ = 22149383777280.

The previous prime is 72217708606189. The next prime is 72217708606243. The reversal of 72217708606212 is 21260680771227.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 744218413 + ... + 744315444.

It is an arithmetic number, because the mean of its divisors is an integer number (3792784270184).

Almost surely, 2^{72217708606212} is an apocalyptic number.

It is an amenable number.

72217708606212 is an abundant number, since it is smaller than the sum of its proper divisors (109835936362620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72217708606212 is a wasteful number, since it uses less digits than its factorization.

72217708606212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488534188 (or 1488534186 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 51.

The spelling of 72217708606212 in words is "seventy-two trillion, two hundred seventeen billion, seven hundred eight million, six hundred six thousand, two hundred twelve".