12220020331 has 2 divisors, whose sum is σ = 12220020332. Its totient is φ = 12220020330.

The previous prime is 12220020299. The next prime is 12220020343. The reversal of 12220020331 is 13302002221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12220020331 - 2⁵ = 12220020299 is a prime.

It is a super-2 number, since 2×12220020331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12220020431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110010165 + 6110010166.

It is an arithmetic number, because the mean of its divisors is an integer number (6110010166).

Almost surely, 2^12220020331 is an apocalyptic number.

12220020331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220020331 is an equidigital number, since it uses as much as digits as its factorization.

12220020331 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 16.

Adding to 12220020331 its reverse (13302002221), we get a palindrome (25522022552).

The spelling of 12220020331 in words is "twelve billion, two hundred twenty million, twenty thousand, three hundred thirty-one".