225221340344 has 64 divisors (see below), whose sum is σ = 566990807040. Its totient is φ = 80998680960.

The previous prime is 225221340341. The next prime is 225221340349. The reversal of 225221340344 is 443043122522.

225221340344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 225221340344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225221340341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14054264 + ... + 14070279.

It is an arithmetic number, because the mean of its divisors is an integer number (8859231360).

Almost surely, 2^225221340344 is an apocalyptic number.

It is an amenable number.

225221340344 is an abundant number, since it is smaller than the sum of its proper divisors (341769466696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225221340344 is a wasteful number, since it uses less digits than its factorization.

225221340344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28124580 (or 28124576 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 225221340344 its reverse (443043122522), we get a palindrome (668264462866).

It can be divided in two parts, 225221 and 340344, that added together give a palindrome (565565).

The spelling of 225221340344 in words is "two hundred twenty-five billion, two hundred twenty-one million, three hundred forty thousand, three hundred forty-four".