12231022009 has 2 divisors, whose sum is σ = 12231022010. Its totient is φ = 12231022008.

The previous prime is 12231021931. The next prime is 12231022033. The reversal of 12231022009 is 90022013221.

12231022009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12204725625 + 26296384 = 110475^2 + 5128^2 .

It is a cyclic number.

It is not a de Polignac number, because 12231022009 - 2¹⁵ = 12230989241 is a prime.

It is not a weakly prime, because it can be changed into another prime (12231082009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115511004 + 6115511005.

It is an arithmetic number, because the mean of its divisors is an integer number (6115511005).

Almost surely, 2^12231022009 is an apocalyptic number.

It is an amenable number.

12231022009 is a deficient number, since it is larger than the sum of its proper divisors (1).

12231022009 is an equidigital number, since it uses as much as digits as its factorization.

12231022009 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 12231022009 in words is "twelve billion, two hundred thirty-one million, twenty-two thousand, nine".