99921233112 has 32 divisors (see below), whose sum is σ = 249840008880. Its totient is φ = 33302154240.

The previous prime is 99921233063. The next prime is 99921233129. The reversal of 99921233112 is 21133212999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140113 + ... + 468480.

Almost surely, 2^99921233112 is an apocalyptic number.

It is an amenable number.

99921233112 is an abundant number, since it is smaller than the sum of its proper divisors (149918775768).

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

99921233112 is a wasteful number, since it uses less digits than its factorization.

99921233112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615443 (or 615439 counting only the distinct ones).

The product of its digits is 52488, while the sum is 42.

The spelling of 99921233112 in words is "ninety-nine billion, nine hundred twenty-one million, two hundred thirty-three thousand, one hundred twelve".