12041221589 has 2 divisors, whose sum is σ = 12041221590. Its totient is φ = 12041221588.

The previous prime is 12041221547. The next prime is 12041221613. The reversal of 12041221589 is 98512214021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7502504689 + 4538716900 = 86617^2 + 67370^2 .

It is a cyclic number.

It is not a de Polignac number, because 12041221589 - 2⁸ = 12041221333 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12041221789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6020610794 + 6020610795.

It is an arithmetic number, because the mean of its divisors is an integer number (6020610795).

Almost surely, 2^12041221589 is an apocalyptic number.

It is an amenable number.

12041221589 is a deficient number, since it is larger than the sum of its proper divisors (1).

12041221589 is an equidigital number, since it uses as much as digits as its factorization.

12041221589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 35.

The spelling of 12041221589 in words is "twelve billion, forty-one million, two hundred twenty-one thousand, five hundred eighty-nine".