12209999999959 has 2 divisors, whose sum is σ = 12209999999960. Its totient is φ = 12209999999958.

The previous prime is 12209999999861. The next prime is 12210000000017. The reversal of 12209999999959 is 95999999990221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12209999999959 - 2¹¹ = 12209999997911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12209999999059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6104999999979 + 6104999999980.

It is an arithmetic number, because the mean of its divisors is an integer number (6104999999980).

Almost surely, 2^{12209999999959} is an apocalyptic number.

12209999999959 is a deficient number, since it is larger than the sum of its proper divisors (1).

12209999999959 is an equidigital number, since it uses as much as digits as its factorization.

12209999999959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7748409780, while the sum is 91.

The spelling of 12209999999959 in words is "twelve trillion, two hundred nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred fifty-nine".