72132212 has 12 divisors (see below), whose sum is σ = 126485856. Its totient is φ = 35993400.

The previous prime is 72132211. The next prime is 72132217. The reversal of 72132212 is 21223127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72132211) 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, 15914 + ... + 19937.

It is an arithmetic number, because the mean of its divisors is an integer number (10540488).

Almost surely, 2^72132212 is an apocalyptic number.

It is an amenable number.

72132212 is a deficient number, since it is larger than the sum of its proper divisors (54353644).

72132212 is a wasteful number, since it uses less digits than its factorization.

72132212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36358 (or 36356 counting only the distinct ones).

The product of its digits is 336, while the sum is 20.

The square root of 72132212 is about 8493.0684678743. The cubic root of 72132212 is about 416.2712496855.

Adding to 72132212 its reverse (21223127), we get a palindrome (93355339).

The spelling of 72132212 in words is "seventy-two million, one hundred thirty-two thousand, two hundred twelve".