111221033122 has 32 divisors (see below), whose sum is σ = 176570634240. Its totient is φ = 52459943760.

The previous prime is 111221033059. The next prime is 111221033123. The reversal of 111221033122 is 221330122111.

It is a self number, because there is not a number n which added to its sum of digits gives 111221033122.

It is not an unprimeable number, because it can be changed into a prime (111221033123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1299529 + ... + 1382467.

It is an arithmetic number, because the mean of its divisors is an integer number (5517832320).

Almost surely, 2^111221033122 is an apocalyptic number.

111221033122 is a deficient number, since it is larger than the sum of its proper divisors (65349601118).

111221033122 is a wasteful number, since it uses less digits than its factorization.

111221033122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83518.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111221033122 its reverse (221330122111), we get a palindrome (332551155233).

It can be divided in two parts, 111221033 and 122, that added together give a triangular number (111221155 = T₁₄₉₁₄).

The spelling of 111221033122 in words is "one hundred eleven billion, two hundred twenty-one million, thirty-three thousand, one hundred twenty-two".