13122199999 has 2 divisors, whose sum is σ = 13122200000. Its totient is φ = 13122199998.

The previous prime is 13122199997. The next prime is 13122200027. The reversal of 13122199999 is 99999122131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13122199999 - 2¹ = 13122199997 is a prime.

Together with 13122199997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13122199997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561099999 + 6561100000.

It is an arithmetic number, because the mean of its divisors is an integer number (6561100000).

Almost surely, 2^13122199999 is an apocalyptic number.

13122199999 is a deficient number, since it is larger than the sum of its proper divisors (1).

13122199999 is an equidigital number, since it uses as much as digits as its factorization.

13122199999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 708588, while the sum is 55.

The spelling of 13122199999 in words is "thirteen billion, one hundred twenty-two million, one hundred ninety-nine thousand, nine hundred ninety-nine".