111221022211122 has 16 divisors (see below), whose sum is σ = 222442169513760. Its totient is φ = 37073653221792.

The previous prime is 111221022211069. The next prime is 111221022211133. The reversal of 111221022211122 is 221112220122111.

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, 9572254 + ... + 17722022.

It is an arithmetic number, because the mean of its divisors is an integer number (13902635594610).

Almost surely, 2^{111221022211122} is an apocalyptic number.

111221022211122 is an abundant number, since it is smaller than the sum of its proper divisors (111221147302638).

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

111221022211122 is a wasteful number, since it uses less digits than its factorization.

111221022211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10424297.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 111221022211122 its reverse (221112220122111), we get a palindrome (332333242333233).

The spelling of 111221022211122 in words is "one hundred eleven trillion, two hundred twenty-one billion, twenty-two million, two hundred eleven thousand, one hundred twenty-two".