13221223399 has 2 divisors, whose sum is σ = 13221223400. Its totient is φ = 13221223398.

The previous prime is 13221223349. The next prime is 13221223403. The reversal of 13221223399 is 99332212231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13221223399 - 2⁷ = 13221223271 is a prime.

It is a super-2 number, since 2×13221223399² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13221223349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610611699 + 6610611700.

It is an arithmetic number, because the mean of its divisors is an integer number (6610611700).

Almost surely, 2^13221223399 is an apocalyptic number.

13221223399 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221223399 is an equidigital number, since it uses as much as digits as its factorization.

13221223399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 37.

The spelling of 13221223399 in words is "thirteen billion, two hundred twenty-one million, two hundred twenty-three thousand, three hundred ninety-nine".