12205004239 has 2 divisors, whose sum is σ = 12205004240. Its totient is φ = 12205004238.

The previous prime is 12205004233. The next prime is 12205004267. The reversal of 12205004239 is 93240050221.

It is an a-pointer prime, because the next prime (12205004267) can be obtained adding 12205004239 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12205004239 - 2⁷ = 12205004111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12205004233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6102502119 + 6102502120.

It is an arithmetic number, because the mean of its divisors is an integer number (6102502120).

Almost surely, 2^12205004239 is an apocalyptic number.

12205004239 is a deficient number, since it is larger than the sum of its proper divisors (1).

12205004239 is an equidigital number, since it uses as much as digits as its factorization.

12205004239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 12205004239 in words is "twelve billion, two hundred five million, four thousand, two hundred thirty-nine".