111112112122 has 64 divisors (see below), whose sum is σ = 187144214400. Its totient is φ = 49054720000.

The previous prime is 111112112113. The next prime is 111112112129. The reversal of 111112112122 is 221211211111.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 111112112096 and 111112112105.

It is not an unprimeable number, because it can be changed into a prime (111112112129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25904154 + ... + 25908442.

It is an arithmetic number, because the mean of its divisors is an integer number (2924128350).

Almost surely, 2^111112112122 is an apocalyptic number.

111112112122 is a deficient number, since it is larger than the sum of its proper divisors (76032102278).

111112112122 is a wasteful number, since it uses less digits than its factorization.

111112112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4623.

The product of its digits is 16, while the sum is 16.

Adding to 111112112122 its reverse (221211211111), we get a palindrome (332323323233).

The spelling of 111112112122 in words is "one hundred eleven billion, one hundred twelve million, one hundred twelve thousand, one hundred twenty-two".