111221111202 has 32 divisors (see below), whose sum is σ = 236086596864. Its totient is φ = 34810003200.

The previous prime is 111221111179. The next prime is 111221111207. The reversal of 111221111202 is 202111122111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (111221111207) 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, 1252074 + ... + 1337957.

It is an arithmetic number, because the mean of its divisors is an integer number (7377706152).

Almost surely, 2^111221111202 is an apocalyptic number.

111221111202 is an abundant number, since it is smaller than the sum of its proper divisors (124865485662).

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

111221111202 is a wasteful number, since it uses less digits than its factorization.

111221111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590474.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111221111202 its reverse (202111122111), we get a palindrome (313332233313).

The spelling of 111221111202 in words is "one hundred eleven billion, two hundred twenty-one million, one hundred eleven thousand, two hundred two".