12225607879 has 4 divisors (see below), whose sum is σ = 12231876160. Its totient is φ = 12219339600.

The previous prime is 12225607873. The next prime is 12225607897. The reversal of 12225607879 is 97870652221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12225607879 - 2⁵ = 12225607847 is a prime.

It is a super-2 number, since 2×12225607879² (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 (12225607873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3131214 + ... + 3135115.

It is an arithmetic number, because the mean of its divisors is an integer number (3057969040).

Almost surely, 2^12225607879 is an apocalyptic number.

12225607879 is a deficient number, since it is larger than the sum of its proper divisors (6268281).

12225607879 is an equidigital number, since it uses as much as digits as its factorization.

12225607879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6268280.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 12225607879 in words is "twelve billion, two hundred twenty-five million, six hundred seven thousand, eight hundred seventy-nine".