91000012222112 has 48 divisors (see below), whose sum is σ = 204755576804352. Its totient is φ = 38998948227840.

The previous prime is 91000012222079. The next prime is 91000012222127. The reversal of 91000012222112 is 21122221000019.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2805953 + ... + 13779455.

It is an arithmetic number, because the mean of its divisors is an integer number (4265741183424).

Almost surely, 2^{91000012222112} is an apocalyptic number.

It is an amenable number.

91000012222112 is an abundant number, since it is smaller than the sum of its proper divisors (113755564582240).

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

91000012222112 is a wasteful number, since it uses less digits than its factorization.

91000012222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11010541 (or 11010533 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 91000012222112 in words is "ninety-one trillion, twelve million, two hundred twenty-two thousand, one hundred twelve".