99212572 has 12 divisors (see below), whose sum is σ = 175573440. Its totient is φ = 49048736.

The previous prime is 99212569. The next prime is 99212599. The reversal of 99212572 is 27521299.

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, 138988 + ... + 139699.

It is an arithmetic number, because the mean of its divisors is an integer number (14631120).

Almost surely, 2^99212572 is an apocalyptic number.

It is an amenable number.

99212572 is a deficient number, since it is larger than the sum of its proper divisors (76360868).

99212572 is a wasteful number, since it uses less digits than its factorization.

99212572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278780 (or 278778 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The square root of 99212572 is about 9960.5507879836. The cubic root of 99212572 is about 462.9373658678.

The spelling of 99212572 in words is "ninety-nine million, two hundred twelve thousand, five hundred seventy-two".