12222199979 has 8 divisors (see below), whose sum is σ = 13334111472. Its totient is φ = 11110422240.

The previous prime is 12222199933. The next prime is 12222199993. The reversal of 12222199979 is 97999122221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12222199979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12222199979.

It is not an unprimeable number, because it can be changed into a prime (12222169979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321377 + ... + 357389.

It is an arithmetic number, because the mean of its divisors is an integer number (1666763934).

Almost surely, 2^12222199979 is an apocalyptic number.

12222199979 is a deficient number, since it is larger than the sum of its proper divisors (1111911493).

12222199979 is a wasteful number, since it uses less digits than its factorization.

12222199979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66877.

The product of its digits is 734832, while the sum is 53.

The spelling of 12222199979 in words is "twelve billion, two hundred twenty-two million, one hundred ninety-nine thousand, nine hundred seventy-nine".