111345792228 has 144 divisors (see below), whose sum is σ = 326925668160. Its totient is φ = 31578624000.

The previous prime is 111345792191. The next prime is 111345792289. The reversal of 111345792228 is 822297543111.

111345792228 is a `hidden beast` number, since 1 + 1 + 1 + 34 + 579 + 22 + 28 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1158828 + ... + 1251228.

It is an arithmetic number, because the mean of its divisors is an integer number (2270317140).

Almost surely, 2^111345792228 is an apocalyptic number.

111345792228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111345792228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163462834080).

111345792228 is an abundant number, since it is smaller than the sum of its proper divisors (215579875932).

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

111345792228 is a wasteful number, since it uses less digits than its factorization.

111345792228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92618 (or 92613 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The spelling of 111345792228 in words is "one hundred eleven billion, three hundred forty-five million, seven hundred ninety-two thousand, two hundred twenty-eight".