12205454039 has 2 divisors, whose sum is σ = 12205454040. Its totient is φ = 12205454038.

The previous prime is 12205454033. The next prime is 12205454161. The reversal of 12205454039 is 93045450221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12205454039 - 2²⁴ = 12188676823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12205454033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6102727019 + 6102727020.

It is an arithmetic number, because the mean of its divisors is an integer number (6102727020).

Almost surely, 2^12205454039 is an apocalyptic number.

12205454039 is a deficient number, since it is larger than the sum of its proper divisors (1).

12205454039 is an equidigital number, since it uses as much as digits as its factorization.

12205454039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 12205454039 in words is "twelve billion, two hundred five million, four hundred fifty-four thousand, thirty-nine".