37991221021112 has 16 divisors (see below), whose sum is σ = 71233745343000. Its totient is φ = 18995555596320.

The previous prime is 37991221021087. The next prime is 37991221021121. The reversal of 37991221021112 is 21112012219973.

It is a self number, because there is not a number n which added to its sum of digits gives 37991221021112.

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, 3845939 + ... + 9527522.

Almost surely, 2^{37991221021112} is an apocalyptic number.

It is an amenable number.

37991221021112 is a deficient number, since it is larger than the sum of its proper divisors (33242524321888).

37991221021112 is a wasteful number, since it uses less digits than its factorization.

37991221021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13728566 (or 13728562 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 41.

The spelling of 37991221021112 in words is "thirty-seven trillion, nine hundred ninety-one billion, two hundred twenty-one million, twenty-one thousand, one hundred twelve".