111312042122 has 16 divisors (see below), whose sum is σ = 168703488072. Its totient is φ = 55077642240.

The previous prime is 111312042109. The next prime is 111312042139. The reversal of 111312042122 is 221240213111.

It can be written as a sum of positive squares in 4 ways, for example, as 107511196321 + 3800845801 = 327889^2 + 61651^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111312042094 and 111312042103.

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, 4395248 + ... + 4420500.

Almost surely, 2^111312042122 is an apocalyptic number.

111312042122 is a deficient number, since it is larger than the sum of its proper divisors (57391445950).

111312042122 is a wasteful number, since it uses less digits than its factorization.

111312042122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48073.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 111312042122 its reverse (221240213111), we get a palindrome (332552255233).

The spelling of 111312042122 in words is "one hundred eleven billion, three hundred twelve million, forty-two thousand, one hundred twenty-two".