12122239 has 2 divisors, whose sum is σ = 12122240. Its totient is φ = 12122238.

The previous prime is 12122237. The next prime is 12122249. The reversal of 12122239 is 93222121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12122239 - 2¹ = 12122237 is a prime.

Together with 12122237, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12122237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061119 + 6061120.

It is an arithmetic number, because the mean of its divisors is an integer number (6061120).

Almost surely, 2^12122239 is an apocalyptic number.

12122239 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122239 is an equidigital number, since it uses as much as digits as its factorization.

12122239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 22.

The square root of 12122239 is about 3481.7005902289. The cubic root of 12122239 is about 229.7176055283.

The spelling of 12122239 in words is "twelve million, one hundred twenty-two thousand, two hundred thirty-nine".