111141443220 has 48 divisors (see below), whose sum is σ = 311405568768. Its totient is φ = 29617763200.

The previous prime is 111141443213. The next prime is 111141443221. The reversal of 111141443220 is 22344141111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111141443221) 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, 533631 + ... + 712070.

It is an arithmetic number, because the mean of its divisors is an integer number (6487616016).

Almost surely, 2^111141443220 is an apocalyptic number.

111141443220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111141443220 is an abundant number, since it is smaller than the sum of its proper divisors (200264125548).

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

111141443220 is a wasteful number, since it uses less digits than its factorization.

111141443220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247200 (or 1247198 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 111141443220 its reverse (22344141111), we get a palindrome (133485584331).

The spelling of 111141443220 in words is "one hundred eleven billion, one hundred forty-one million, four hundred forty-three thousand, two hundred twenty".