12225139660813 has 2 divisors, whose sum is σ = 12225139660814. Its totient is φ = 12225139660812.

The previous prime is 12225139660793. The next prime is 12225139660837. The reversal of 12225139660813 is 31806693152221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11776578616804 + 448561044009 = 3431702^2 + 669747^2 .

It is a cyclic number.

It is not a de Polignac number, because 12225139660813 - 2⁹ = 12225139660301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12225139660313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6112569830406 + 6112569830407.

It is an arithmetic number, because the mean of its divisors is an integer number (6112569830407).

Almost surely, 2^{12225139660813} is an apocalyptic number.

It is an amenable number.

12225139660813 is a deficient number, since it is larger than the sum of its proper divisors (1).

12225139660813 is an equidigital number, since it uses as much as digits as its factorization.

12225139660813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 12225139660813 in words is "twelve trillion, two hundred twenty-five billion, one hundred thirty-nine million, six hundred sixty thousand, eight hundred thirteen".