12256322624225 has 12 divisors (see below), whose sum is σ = 15197885693820. Its totient is φ = 9805028654400.

The previous prime is 12256322624201. The next prime is 12256322624261. The reversal of 12256322624225 is 52242622365221.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2290292449 + 12254032331776 = 47857^2 + 3500576^2 .

It is not a de Polignac number, because 12256322624225 - 2⁴⁰ = 11156810996449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12241055 + ... + 13204395.

It is an arithmetic number, because the mean of its divisors is an integer number (1266490474485).

Almost surely, 2^{12256322624225} is an apocalyptic number.

It is an amenable number.

12256322624225 is a deficient number, since it is larger than the sum of its proper divisors (2941563069595).

12256322624225 is an equidigital number, since it uses as much as digits as its factorization.

12256322624225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472260 (or 1472255 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 44.

Adding to 12256322624225 its reverse (52242622365221), we get a palindrome (64498944989446).

The spelling of 12256322624225 in words is "twelve trillion, two hundred fifty-six billion, three hundred twenty-two million, six hundred twenty-four thousand, two hundred twenty-five".