225115321223 has 16 divisors (see below), whose sum is σ = 261535853376. Its totient is φ = 191885191680.

The previous prime is 225115321201. The next prime is 225115321243. The reversal of 225115321223 is 322123511522.

It is a happy number.

It is not a de Polignac number, because 225115321223 - 2³⁶ = 156395844487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225115321243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9597923 + ... + 9621348.

It is an arithmetic number, because the mean of its divisors is an integer number (16345990836).

Almost surely, 2^225115321223 is an apocalyptic number.

225115321223 is a deficient number, since it is larger than the sum of its proper divisors (36420532153).

225115321223 is a wasteful number, since it uses less digits than its factorization.

225115321223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19219354.

The product of its digits is 7200, while the sum is 29.

Adding to 225115321223 its reverse (322123511522), we get a palindrome (547238832745).

The spelling of 225115321223 in words is "two hundred twenty-five billion, one hundred fifteen million, three hundred twenty-one thousand, two hundred twenty-three".