111112102122 has 16 divisors (see below), whose sum is σ = 253970519232. Its totient is φ = 31746314880.

The previous prime is 111112102109. The next prime is 111112102139. The reversal of 111112102122 is 221201211111.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1322763079 + ... + 1322763162.

It is an arithmetic number, because the mean of its divisors is an integer number (15873157452).

Almost surely, 2^111112102122 is an apocalyptic number.

111112102122 is an abundant number, since it is smaller than the sum of its proper divisors (142858417110).

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

111112102122 is a wasteful number, since it uses less digits than its factorization.

111112102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645526253.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111112102122 its reverse (221201211111), we get a palindrome (332313313233).

The spelling of 111112102122 in words is "one hundred eleven billion, one hundred twelve million, one hundred two thousand, one hundred twenty-two".