12121202179 has 2 divisors, whose sum is σ = 12121202180. Its totient is φ = 12121202178.

The previous prime is 12121202173. The next prime is 12121202201. The reversal of 12121202179 is 97120212121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12121202179 - 2¹¹ = 12121200131 is a prime.

It is not a weakly prime, because it can be changed into another prime (12121202173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060601089 + 6060601090.

It is an arithmetic number, because the mean of its divisors is an integer number (6060601090).

Almost surely, 2^12121202179 is an apocalyptic number.

12121202179 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121202179 is an equidigital number, since it uses as much as digits as its factorization.

12121202179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 12121202179 in words is "twelve billion, one hundred twenty-one million, two hundred two thousand, one hundred seventy-nine".