12079170221 has 2 divisors, whose sum is σ = 12079170222. Its totient is φ = 12079170220.

The previous prime is 12079170203. The next prime is 12079170307. The reversal of 12079170221 is 12207197021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11516294596 + 562875625 = 107314^2 + 23725^2 .

It is a cyclic number.

It is not a de Polignac number, because 12079170221 - 2²⁶ = 12012061357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12079170121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6039585110 + 6039585111.

It is an arithmetic number, because the mean of its divisors is an integer number (6039585111).

Almost surely, 2^12079170221 is an apocalyptic number.

It is an amenable number.

12079170221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12079170221 is an equidigital number, since it uses as much as digits as its factorization.

12079170221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 32.

The spelling of 12079170221 in words is "twelve billion, seventy-nine million, one hundred seventy thousand, two hundred twenty-one".