12601422365 has 24 divisors (see below), whose sum is σ = 18019609272. Its totient is φ = 8430213120.

The previous prime is 12601422331. The next prime is 12601422389. The reversal of 12601422365 is 56322410621.

It can be written as a sum of positive squares in 4 ways, for example, as 285305881 + 12316116484 = 16891^2 + 110978^2 .

It is not a de Polignac number, because 12601422365 - 2¹⁰ = 12601421341 is a prime.

It is a super-2 number, since 2×12601422365² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 617204 + ... + 637293.

It is an arithmetic number, because the mean of its divisors is an integer number (750817053).

Almost surely, 2^12601422365 is an apocalyptic number.

It is an amenable number.

12601422365 is a deficient number, since it is larger than the sum of its proper divisors (5418186907).

12601422365 is a wasteful number, since it uses less digits than its factorization.

12601422365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254557 (or 1254550 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 12601422365 its reverse (56322410621), we get a palindrome (68923832986).

The spelling of 12601422365 in words is "twelve billion, six hundred one million, four hundred twenty-two thousand, three hundred sixty-five".