12220342113 has 24 divisors (see below), whose sum is σ = 19357287552. Its totient is φ = 6834473184.

The previous prime is 12220342111. The next prime is 12220342139. The reversal of 12220342113 is 31124302221.

It is not a de Polignac number, because 12220342113 - 2¹ = 12220342111 is a prime.

It is a super-2 number, since 2×12220342113² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12220342113.

It is not an unprimeable number, because it can be changed into a prime (12220342111) 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, 877470 + ... + 891287.

It is an arithmetic number, because the mean of its divisors is an integer number (806553648).

Almost surely, 2^12220342113 is an apocalyptic number.

It is an amenable number.

12220342113 is a deficient number, since it is larger than the sum of its proper divisors (7136945439).

12220342113 is a wasteful number, since it uses less digits than its factorization.

12220342113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768821 (or 1768814 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12220342113 its reverse (31124302221), we get a palindrome (43344644334).

The spelling of 12220342113 in words is "twelve billion, two hundred twenty million, three hundred forty-two thousand, one hundred thirteen".