199921233112 has 32 divisors (see below), whose sum is σ = 396928490400. Its totient is φ = 94074407424.

The previous prime is 199921233107. The next prime is 199921233137. The reversal of 199921233112 is 211332129991.

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, 2541589 + ... + 2619067.

It is an arithmetic number, because the mean of its divisors is an integer number (12404015325).

Almost surely, 2^199921233112 is an apocalyptic number.

It is an amenable number.

199921233112 is a deficient number, since it is larger than the sum of its proper divisors (197007257288).

199921233112 is a wasteful number, since it uses less digits than its factorization.

199921233112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96475 (or 96471 counting only the distinct ones).

The product of its digits is 52488, while the sum is 43.

The spelling of 199921233112 in words is "one hundred ninety-nine billion, nine hundred twenty-one million, two hundred thirty-three thousand, one hundred twelve".