111012102022122 has 96 divisors (see below), whose sum is σ = 283481552390400. Its totient is φ = 30736460931840.

The previous prime is 111012102022121. The next prime is 111012102022141. The reversal of 111012102022122 is 221220201210111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111012102022095 and 111012102022104.

It is not an unprimeable number, because it can be changed into a prime (111012102022121) 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 47 ways as a sum of consecutive naturals, for example, 71340958 + ... + 72880425.

It is an arithmetic number, because the mean of its divisors is an integer number (2952932837400).

Almost surely, 2^{111012102022122} is an apocalyptic number.

111012102022122 is an abundant number, since it is smaller than the sum of its proper divisors (172469450368278).

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

111012102022122 is a wasteful number, since it uses less digits than its factorization.

111012102022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144221588 (or 144221585 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111012102022122 its reverse (221220201210111), we get a palindrome (332232303232233).

The spelling of 111012102022122 in words is "one hundred eleven trillion, twelve billion, one hundred two million, twenty-two thousand, one hundred twenty-two".