12122979 has 16 divisors (see below), whose sum is σ = 17794944. Its totient is φ = 7280000.

The previous prime is 12122977. The next prime is 12122983. The reversal of 12122979 is 97922121.

It is a cyclic number.

It is not a de Polignac number, because 12122979 - 2¹ = 12122977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (12122977) 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, 2104 + ... + 5354.

It is an arithmetic number, because the mean of its divisors is an integer number (1112184).

Almost surely, 2^12122979 is an apocalyptic number.

12122979 is a deficient number, since it is larger than the sum of its proper divisors (5671965).

12122979 is a wasteful number, since it uses less digits than its factorization.

12122979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3378.

The product of its digits is 4536, while the sum is 33.

The square root of 12122979 is about 3481.8068585147. The cubic root of 12122979 is about 229.7222797905.

The spelling of 12122979 in words is "twelve million, one hundred twenty-two thousand, nine hundred seventy-nine".