13221211079 has 2 divisors, whose sum is σ = 13221211080. Its totient is φ = 13221211078.

The previous prime is 13221211019. The next prime is 13221211127. The reversal of 13221211079 is 97011212231.

13221211079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13221211079 - 2²⁰ = 13220162503 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13221211019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610605539 + 6610605540.

It is an arithmetic number, because the mean of its divisors is an integer number (6610605540).

Almost surely, 2^13221211079 is an apocalyptic number.

13221211079 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221211079 is an equidigital number, since it uses as much as digits as its factorization.

13221211079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 29.

The spelling of 13221211079 in words is "thirteen billion, two hundred twenty-one million, two hundred eleven thousand, seventy-nine".