12220321279 has 2 divisors, whose sum is σ = 12220321280. Its totient is φ = 12220321278.

The previous prime is 12220321177. The next prime is 12220321301. The reversal of 12220321279 is 97212302221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12220321279 - 2¹⁹ = 12219796991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12220321279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12220621279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110160639 + 6110160640.

It is an arithmetic number, because the mean of its divisors is an integer number (6110160640).

Almost surely, 2^12220321279 is an apocalyptic number.

12220321279 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220321279 is an equidigital number, since it uses as much as digits as its factorization.

12220321279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 12220321279 in words is "twelve billion, two hundred twenty million, three hundred twenty-one thousand, two hundred seventy-nine".