12122445679 has 8 divisors (see below), whose sum is σ = 12661099920. Its totient is φ = 11594897856.

The previous prime is 12122445677. The next prime is 12122445691. The reversal of 12122445679 is 97654422121.

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

It is a cyclic number.

It is not a de Polignac number, because 12122445679 - 2¹ = 12122445677 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 (12122445677) 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, 2774374 + ... + 2778739.

It is an arithmetic number, because the mean of its divisors is an integer number (1582637490).

Almost surely, 2^12122445679 is an apocalyptic number.

12122445679 is a deficient number, since it is larger than the sum of its proper divisors (538654241).

12122445679 is an equidigital number, since it uses as much as digits as its factorization.

12122445679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5553209.

The product of its digits is 241920, while the sum is 43.

The spelling of 12122445679 in words is "twelve billion, one hundred twenty-two million, four hundred forty-five thousand, six hundred seventy-nine".