12102239 has 2 divisors, whose sum is σ = 12102240. Its totient is φ = 12102238.

The previous prime is 12102199. The next prime is 12102241. The reversal of 12102239 is 93220121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12102239 - 2²⁰ = 11053663 is a prime.

Together with 12102241, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12102239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12102289) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051119 + 6051120.

It is an arithmetic number, because the mean of its divisors is an integer number (6051120).

Almost surely, 2^12102239 is an apocalyptic number.

12102239 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102239 is an equidigital number, since it uses as much as digits as its factorization.

12102239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12102239 is about 3478.8272449203. The cubic root of 12102239 is about 229.5912020064.

The spelling of 12102239 in words is "twelve million, one hundred two thousand, two hundred thirty-nine".