13212445052225 has 24 divisors (see below), whose sum is σ = 17308981618560. Its totient is φ = 9988337011520.

The previous prime is 13212445052141. The next prime is 13212445052239. The reversal of 13212445052225 is 52225054421231.

It is not a de Polignac number, because 13212445052225 - 2¹² = 13212445048129 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 193838927 + ... + 193907076.

It is an arithmetic number, because the mean of its divisors is an integer number (721207567440).

Almost surely, 2^{13212445052225} is an apocalyptic number.

It is an amenable number.

13212445052225 is a deficient number, since it is larger than the sum of its proper divisors (4096536566335).

13212445052225 is a wasteful number, since it uses less digits than its factorization.

13212445052225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387746089 (or 387746084 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 13212445052225 its reverse (52225054421231), we get a palindrome (65437499473456).

The spelling of 13212445052225 in words is "thirteen trillion, two hundred twelve billion, four hundred forty-five million, fifty-two thousand, two hundred twenty-five".