12220323999 has 16 divisors (see below), whose sum is σ = 18021380832. Its totient is φ = 7316949888.

The previous prime is 12220323991. The next prime is 12220324009. The reversal of 12220323999 is 99932302221.

It is not a de Polignac number, because 12220323999 - 2³ = 12220323991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12220323999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220323991) 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, 4232904 + ... + 4235789.

It is an arithmetic number, because the mean of its divisors is an integer number (1126336302).

Almost surely, 2^12220323999 is an apocalyptic number.

12220323999 is a deficient number, since it is larger than the sum of its proper divisors (5801056833).

12220323999 is a wasteful number, since it uses less digits than its factorization.

12220323999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8468746.

The product of its (nonzero) digits is 104976, while the sum is 42.

The spelling of 12220323999 in words is "twelve billion, two hundred twenty million, three hundred twenty-three thousand, nine hundred ninety-nine".