12220764331 has 2 divisors, whose sum is σ = 12220764332. Its totient is φ = 12220764330.

The previous prime is 12220764277. The next prime is 12220764377. The reversal of 12220764331 is 13346702221.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (13346702221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12220764331 - 2⁷ = 12220764203 is a prime.

It is a super-2 number, since 2×12220764331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12220764293 and 12220764302.

It is not a weakly prime, because it can be changed into another prime (12220764431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110382165 + 6110382166.

It is an arithmetic number, because the mean of its divisors is an integer number (6110382166).

Almost surely, 2^12220764331 is an apocalyptic number.

12220764331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220764331 is an equidigital number, since it uses as much as digits as its factorization.

12220764331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The spelling of 12220764331 in words is "twelve billion, two hundred twenty million, seven hundred sixty-four thousand, three hundred thirty-one".