225222522 has 48 divisors (see below), whose sum is σ = 530674560. Its totient is φ = 63528192.

The previous prime is 225222521. The next prime is 225222539.

225222522 is nontrivially palindromic in base 10.

225222522 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 225222492 and 225222501.

It is not an unprimeable number, because it can be changed into a prime (225222521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18378 + ... + 28074.

It is an arithmetic number, because the mean of its divisors is an integer number (11055720).

Almost surely, 2^225222522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225222522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265337280).

225222522 is an abundant number, since it is smaller than the sum of its proper divisors (305452038).

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

225222522 is a wasteful number, since it uses less digits than its factorization.

225222522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9795 (or 9788 counting only the distinct ones).

The product of its digits is 3200, while the sum is 24.

The square root of 225222522 is about 15007.4155669789. The cubic root of 225222522 is about 608.4206407166.

The spelling of 225222522 in words is "two hundred twenty-five million, two hundred twenty-two thousand, five hundred twenty-two".