12212159 has 2 divisors, whose sum is σ = 12212160. Its totient is φ = 12212158.

The previous prime is 12212147. The next prime is 12212173. The reversal of 12212159 is 95121221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12212159 - 2⁴ = 12212143 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12212119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106079 + 6106080.

It is an arithmetic number, because the mean of its divisors is an integer number (6106080).

Almost surely, 2^12212159 is an apocalyptic number.

12212159 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212159 is an equidigital number, since it uses as much as digits as its factorization.

12212159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 23.

The square root of 12212159 is about 3494.5899616407. The cubic root of 12212159 is about 230.2842044376.

The spelling of 12212159 in words is "twelve million, two hundred twelve thousand, one hundred fifty-nine".