111401224440 has 64 divisors (see below), whose sum is σ = 364585829760. Its totient is φ = 27006357120.

The previous prime is 111401224427. The next prime is 111401224447. The reversal of 111401224440 is 44422104111.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 111401224440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111401224447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42196114 + ... + 42198753.

It is an arithmetic number, because the mean of its divisors is an integer number (5696653590).

Almost surely, 2^111401224440 is an apocalyptic number.

111401224440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111401224440 is an abundant number, since it is smaller than the sum of its proper divisors (253184605320).

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

111401224440 is a wasteful number, since it uses less digits than its factorization.

111401224440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84394892 (or 84394888 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 111401224440 its reverse (44422104111), we get a palindrome (155823328551).

The spelling of 111401224440 in words is "one hundred eleven billion, four hundred one million, two hundred twenty-four thousand, four hundred forty".