12220113111 has 24 divisors (see below), whose sum is σ = 17662598640. Its totient is φ = 7489149696.

The previous prime is 12220113079. The next prime is 12220113151. The reversal of 12220113111 is 11131102221.

It is not a de Polignac number, because 12220113111 - 2⁵ = 12220113079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220113151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29505 + ... + 159093.

It is an arithmetic number, because the mean of its divisors is an integer number (735941610).

Almost surely, 2^12220113111 is an apocalyptic number.

12220113111 is a deficient number, since it is larger than the sum of its proper divisors (5442485529).

12220113111 is a wasteful number, since it uses less digits than its factorization.

12220113111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129695 (or 129652 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 12220113111 its reverse (11131102221), we get a palindrome (23351215332).

The spelling of 12220113111 in words is "twelve billion, two hundred twenty million, one hundred thirteen thousand, one hundred eleven".