111225078440 has 96 divisors (see below), whose sum is σ = 291927369600. Its totient is φ = 38027848320.

The previous prime is 111225078409. The next prime is 111225078449. The reversal of 111225078440 is 44870522111.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 111225078440.

It is not an unprimeable number, because it can be changed into a prime (111225078449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 624605 + ... + 782675.

It is an arithmetic number, because the mean of its divisors is an integer number (3040910100).

Almost surely, 2^111225078440 is an apocalyptic number.

111225078440 is a gapful number since it is divisible by the number (10) 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 111225078440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145963684800).

111225078440 is an abundant number, since it is smaller than the sum of its proper divisors (180702291160).

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

111225078440 is a wasteful number, since it uses less digits than its factorization.

111225078440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158455 (or 158444 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The spelling of 111225078440 in words is "one hundred eleven billion, two hundred twenty-five million, seventy-eight thousand, four hundred forty".