111228388900 has 36 divisors (see below), whose sum is σ = 241386769008. Its totient is φ = 44487454240.

The previous prime is 111228388847. The next prime is 111228388939. The reversal of 111228388900 is 9883822111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1276527 + ... + 1360873.

It is an arithmetic number, because the mean of its divisors is an integer number (6705188028).

Almost surely, 2^111228388900 is an apocalyptic number.

111228388900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111228388900 is an abundant number, since it is smaller than the sum of its proper divisors (130158380108).

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

111228388900 is a wasteful number, since it uses less digits than its factorization.

111228388900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97548 (or 97541 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 43.

The spelling of 111228388900 in words is "one hundred eleven billion, two hundred twenty-eight million, three hundred eighty-eight thousand, nine hundred".