13221002929 has 2 divisors, whose sum is σ = 13221002930. Its totient is φ = 13221002928.

The previous prime is 13221002897. The next prime is 13221002983. The reversal of 13221002929 is 92920012231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11625799329 + 1595203600 = 107823^2 + 39940^2 .

It is a cyclic number.

It is not a de Polignac number, because 13221002929 - 2⁵ = 13221002897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13221002929.

It is not a weakly prime, because it can be changed into another prime (13221002989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610501464 + 6610501465.

It is an arithmetic number, because the mean of its divisors is an integer number (6610501465).

Almost surely, 2^13221002929 is an apocalyptic number.

It is an amenable number.

13221002929 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221002929 is an equidigital number, since it uses as much as digits as its factorization.

13221002929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 13221002929 in words is "thirteen billion, two hundred twenty-one million, two thousand, nine hundred twenty-nine".