225722242 has 16 divisors (see below), whose sum is σ = 357688800. Its totient is φ = 106535520.

The previous prime is 225722227. The next prime is 225722267. The reversal of 225722242 is 242227522.

225722242 is digitally balanced in base 3, 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 225722242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109 + ... + 21247.

It is an arithmetic number, because the mean of its divisors is an integer number (22355550).

Almost surely, 2^225722242 is an apocalyptic number.

225722242 is a deficient number, since it is larger than the sum of its proper divisors (131966558).

225722242 is a wasteful number, since it uses less digits than its factorization.

225722242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21441.

The product of its digits is 8960, while the sum is 28.

The square root of 225722242 is about 15024.0554445196. The cubic root of 225722242 is about 608.8702928656.

Adding to 225722242 its reverse (242227522), we get a palindrome (467949764).

The spelling of 225722242 in words is "two hundred twenty-five million, seven hundred twenty-two thousand, two hundred forty-two".