111012122222122 has 32 divisors (see below), whose sum is σ = 181734892876800. Its totient is φ = 50438198252400.

The previous prime is 111012122222119. The next prime is 111012122222129. The reversal of 111012122222122 is 221222221210111.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 111012122222093 and 111012122222102.

It is not an unprimeable number, because it can be changed into a prime (111012122222129) 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 15 ways as a sum of consecutive naturals, for example, 2275793529 + ... + 2275842307.

It is an arithmetic number, because the mean of its divisors is an integer number (5679215402400).

Almost surely, 2^{111012122222122} is an apocalyptic number.

111012122222122 is a deficient number, since it is larger than the sum of its proper divisors (70722770654678).

111012122222122 is a wasteful number, since it uses less digits than its factorization.

111012122222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91482.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 111012122222122 its reverse (221222221210111), we get a palindrome (332234343432233).

The spelling of 111012122222122 in words is "one hundred eleven trillion, twelve billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty-two".