111795422172 has 72 divisors (see below), whose sum is σ = 319415523840. Its totient is φ = 30260412000.

The previous prime is 111795422129. The next prime is 111795422209. The reversal of 111795422172 is 271224597111.

It is a happy number.

111795422172 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4992204 + ... + 5014547.

It is an arithmetic number, because the mean of its divisors is an integer number (4436326720).

Almost surely, 2^111795422172 is an apocalyptic number.

111795422172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111795422172 is an abundant number, since it is smaller than the sum of its proper divisors (207620101668).

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

111795422172 is a wasteful number, since it uses less digits than its factorization.

111795422172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10006791 (or 10006782 counting only the distinct ones).

The product of its digits is 70560, while the sum is 42.

The spelling of 111795422172 in words is "one hundred eleven billion, seven hundred ninety-five million, four hundred twenty-two thousand, one hundred seventy-two".