13222422215225 has 6 divisors (see below), whose sum is σ = 16395803546910. Its totient is φ = 10577937772160.

The previous prime is 13222422215221. The next prime is 13222422215227. The reversal of 13222422215225 is 52251222422231.

It is a happy number.

13222422215225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 3288024250681 + 9934397964544 = 1813291^2 + 3151888^2 .

It is not a de Polignac number, because 13222422215225 - 2² = 13222422215221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13222422215221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 264448444280 + ... + 264448444329.

It is an arithmetic number, because the mean of its divisors is an integer number (2732633924485).

Almost surely, 2^{13222422215225} is an apocalyptic number.

It is an amenable number.

13222422215225 is a deficient number, since it is larger than the sum of its proper divisors (3173381331685).

13222422215225 is an equidigital number, since it uses as much as digits as its factorization.

13222422215225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528896888619 (or 528896888614 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

Adding to 13222422215225 its reverse (52251222422231), we get a palindrome (65473644637456).

The spelling of 13222422215225 in words is "thirteen trillion, two hundred twenty-two billion, four hundred twenty-two million, two hundred fifteen thousand, two hundred twenty-five".