13212422125 has 32 divisors (see below), whose sum is σ = 18867603456. Its totient is φ = 9048931200.

The previous prime is 13212422101. The next prime is 13212422137. The reversal of 13212422125 is 52122421231.

It is not a de Polignac number, because 13212422125 - 2⁷ = 13212421997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13212422125.

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 31 ways as a sum of consecutive naturals, for example, 746377 + ... + 763873.

It is an arithmetic number, because the mean of its divisors is an integer number (589612608).

Almost surely, 2^13212422125 is an apocalyptic number.

It is an amenable number.

13212422125 is a deficient number, since it is larger than the sum of its proper divisors (5655181331).

13212422125 is an equidigital number, since it uses as much as digits as its factorization.

13212422125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18382 (or 18372 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

Adding to 13212422125 its reverse (52122421231), we get a palindrome (65334843356).

The spelling of 13212422125 in words is "thirteen billion, two hundred twelve million, four hundred twenty-two thousand, one hundred twenty-five".