111144000331220 has 48 divisors (see below), whose sum is σ = 236634043705920. Its totient is φ = 43843951877376.

The previous prime is 111144000331213. The next prime is 111144000331223. The reversal of 111144000331220 is 22133000441111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111144000331223) 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, 58527425 + ... + 60396584.

It is an arithmetic number, because the mean of its divisors is an integer number (4929875910540).

Almost surely, 2^{111144000331220} is an apocalyptic number.

111144000331220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111144000331220 is an abundant number, since it is smaller than the sum of its proper divisors (125490043374700).

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

111144000331220 is a wasteful number, since it uses less digits than its factorization.

111144000331220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118924664 (or 118924662 counting only the distinct ones).

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

Adding to 111144000331220 its reverse (22133000441111), we get a palindrome (133277000772331).

The spelling of 111144000331220 in words is "one hundred eleven trillion, one hundred forty-four billion, three hundred thirty-one thousand, two hundred twenty".