111210412420 has 24 divisors (see below), whose sum is σ = 234727366104. Its totient is φ = 44258355456.

The previous prime is 111210412393. The next prime is 111210412433. The reversal of 111210412420 is 24214012111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 80583312384 + 30627100036 = 283872^2 + 175006^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14109057 + ... + 14116936.

It is an arithmetic number, because the mean of its divisors is an integer number (9780306921).

Almost surely, 2^111210412420 is an apocalyptic number.

111210412420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111210412420 is an abundant number, since it is smaller than the sum of its proper divisors (123516953684).

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

111210412420 is a wasteful number, since it uses less digits than its factorization.

111210412420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28226199 (or 28226197 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 111210412420 its reverse (24214012111), we get a palindrome (135424424531).

The spelling of 111210412420 in words is "one hundred eleven billion, two hundred ten million, four hundred twelve thousand, four hundred twenty".