12321214399 has 16 divisors (see below), whose sum is σ = 13748071680. Its totient is φ = 10965530880.

The previous prime is 12321214357. The next prime is 12321214403. The reversal of 12321214399 is 99341212321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12321214399 is a prime.

It is a super-2 number, since 2×12321214399² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321214099) 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, 51579 + ... + 165235.

It is an arithmetic number, because the mean of its divisors is an integer number (859254480).

Almost surely, 2^12321214399 is an apocalyptic number.

12321214399 is a deficient number, since it is larger than the sum of its proper divisors (1426857281).

12321214399 is a wasteful number, since it uses less digits than its factorization.

12321214399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113970.

The product of its digits is 23328, while the sum is 37.

The spelling of 12321214399 in words is "twelve billion, three hundred twenty-one million, two hundred fourteen thousand, three hundred ninety-nine".