111228238618 has 32 divisors (see below), whose sum is σ = 200876515200. Its totient is φ = 45123459264.

The previous prime is 111228238577. The next prime is 111228238631. The reversal of 111228238618 is 816832822111.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156796 + ... + 497032.

It is an arithmetic number, because the mean of its divisors is an integer number (6277391100).

Almost surely, 2^111228238618 is an apocalyptic number.

111228238618 is a deficient number, since it is larger than the sum of its proper divisors (89648276582).

111228238618 is a wasteful number, since it uses less digits than its factorization.

111228238618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341494.

The product of its digits is 73728, while the sum is 43.

The spelling of 111228238618 in words is "one hundred eleven billion, two hundred twenty-eight million, two hundred thirty-eight thousand, six hundred eighteen".