13225112344221 has 32 divisors (see below), whose sum is σ = 17768562527232. Its totient is φ = 8749477591680.

The previous prime is 13225112344207. The next prime is 13225112344229. The reversal of 13225112344221 is 12244321152231.

It is not a de Polignac number, because 13225112344221 - 2¹¹ = 13225112342173 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13225112344229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1109204166 + ... + 1109216088.

It is an arithmetic number, because the mean of its divisors is an integer number (555267578976).

Almost surely, 2^{13225112344221} is an apocalyptic number.

It is an amenable number.

13225112344221 is a deficient number, since it is larger than the sum of its proper divisors (4543450183011).

13225112344221 is a wasteful number, since it uses less digits than its factorization.

13225112344221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17473.

The product of its digits is 23040, while the sum is 33.

Adding to 13225112344221 its reverse (12244321152231), we get a palindrome (25469433496452).

The spelling of 13225112344221 in words is "thirteen trillion, two hundred twenty-five billion, one hundred twelve million, three hundred forty-four thousand, two hundred twenty-one".