12220111012 has 24 divisors (see below), whose sum is σ = 21440095040. Its totient is φ = 6094392480.

The previous prime is 12220110997. The next prime is 12220111019. The reversal of 12220111012 is 21011102221.

It is a super-2 number, since 2×12220111012² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12220110983 and 12220111001.

It is not an unprimeable number, because it can be changed into a prime (12220111019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3106687 + ... + 3110617.

Almost surely, 2^12220111012 is an apocalyptic number.

It is an amenable number.

12220111012 is a deficient number, since it is larger than the sum of its proper divisors (9219984028).

12220111012 is a wasteful number, since it uses less digits than its factorization.

12220111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5731 (or 5729 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12220111012 its reverse (21011102221), we get a palindrome (33231213233).

The spelling of 12220111012 in words is "twelve billion, two hundred twenty million, one hundred eleven thousand, twelve".