13224012399 has 16 divisors (see below), whose sum is σ = 21098140000. Its totient is φ = 8137853568.

The previous prime is 13224012341. The next prime is 13224012419. The reversal of 13224012399 is 99321042231.

13224012399 is a `hidden beast` number, since 13 + 2 + 2 + 401 + 239 + 9 = 666.

It is not a de Polignac number, because 13224012399 - 2⁸ = 13224012143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13224012299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18837274 + ... + 18837975.

It is an arithmetic number, because the mean of its divisors is an integer number (1318633750).

Almost surely, 2^13224012399 is an apocalyptic number.

13224012399 is a deficient number, since it is larger than the sum of its proper divisors (7874127601).

13224012399 is a wasteful number, since it uses less digits than its factorization.

13224012399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37675271 (or 37675265 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 13224012399 in words is "thirteen billion, two hundred twenty-four million, twelve thousand, three hundred ninety-nine".