12220023131 has 2 divisors, whose sum is σ = 12220023132. Its totient is φ = 12220023130.

The previous prime is 12220023107. The next prime is 12220023149. The reversal of 12220023131 is 13132002221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12220023131 is a prime.

It is a super-2 number, since 2×12220023131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12220023191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110011565 + 6110011566.

It is an arithmetic number, because the mean of its divisors is an integer number (6110011566).

Almost surely, 2^12220023131 is an apocalyptic number.

12220023131 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220023131 is an equidigital number, since it uses as much as digits as its factorization.

12220023131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12220023131 its reverse (13132002221), we get a palindrome (25352025352).

The spelling of 12220023131 in words is "twelve billion, two hundred twenty million, twenty-three thousand, one hundred thirty-one".