111121022222 has 32 divisors (see below), whose sum is σ = 196066974720. Its totient is φ = 46249613280.

The previous prime is 111121022167. The next prime is 111121022261. The reversal of 111121022222 is 222220121111.

It is a self number, because there is not a number n which added to its sum of digits gives 111121022222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 756068 + ... + 890999.

It is an arithmetic number, because the mean of its divisors is an integer number (6127092960).

Almost surely, 2^111121022222 is an apocalyptic number.

111121022222 is a deficient number, since it is larger than the sum of its proper divisors (84945952498).

111121022222 is a wasteful number, since it uses less digits than its factorization.

111121022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647216.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111121022222 its reverse (222220121111), we get a palindrome (333341143333).

The spelling of 111121022222 in words is "one hundred eleven billion, one hundred twenty-one million, twenty-two thousand, two hundred twenty-two".