12220132231 has 6 divisors (see below), whose sum is σ = 12774543320. Its totient is φ = 11688821628.

The previous prime is 12220132229. The next prime is 12220132279. The reversal of 12220132231 is 13223102221.

It is not a de Polignac number, because 12220132231 - 2¹ = 12220132229 is a prime.

It is a super-2 number, since 2×12220132231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12220132199 and 12220132208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220132531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11549691 + ... + 11550748.

Almost surely, 2^12220132231 is an apocalyptic number.

12220132231 is a deficient number, since it is larger than the sum of its proper divisors (554411089).

12220132231 is an equidigital number, since it uses as much as digits as its factorization.

12220132231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23100485 (or 23100462 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12220132231 its reverse (13223102221), we get a palindrome (25443234452).

The spelling of 12220132231 in words is "twelve billion, two hundred twenty million, one hundred thirty-two thousand, two hundred thirty-one".