12212959565597 has 32 divisors (see below), whose sum is σ = 14499697124352. Its totient is φ = 10069231544064.

The previous prime is 12212959565549. The next prime is 12212959565671. The reversal of 12212959565597 is 79556595921221.

It is not a de Polignac number, because 12212959565597 - 2¹⁰ = 12212959564573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212959565797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69831653 + ... + 70006325.

It is an arithmetic number, because the mean of its divisors is an integer number (453115535136).

Almost surely, 2^{12212959565597} is an apocalyptic number.

It is an amenable number.

12212959565597 is a deficient number, since it is larger than the sum of its proper divisors (2286737558755).

12212959565597 is a wasteful number, since it uses less digits than its factorization.

12212959565597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178257.

The product of its digits is 153090000, while the sum is 68.

The spelling of 12212959565597 in words is "twelve trillion, two hundred twelve billion, nine hundred fifty-nine million, five hundred sixty-five thousand, five hundred ninety-seven".