91222124 has 18 divisors (see below), whose sum is σ = 185702580. Its totient is φ = 39095112.

The previous prime is 91222111. The next prime is 91222147. The reversal of 91222124 is 42122219.

It is a self number, because there is not a number n which added to its sum of digits gives 91222124.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 232514 + ... + 232905.

It is an arithmetic number, because the mean of its divisors is an integer number (10316810).

Almost surely, 2^91222124 is an apocalyptic number.

It is an amenable number.

91222124 is an abundant number, since it is smaller than the sum of its proper divisors (94480456).

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

91222124 is a wasteful number, since it uses less digits than its factorization.

91222124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465437 (or 465428 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 91222124 is about 9551.0273792928. The cubic root of 91222124 is about 450.1598181308.

The spelling of 91222124 in words is "ninety-one million, two hundred twenty-two thousand, one hundred twenty-four".