222531130 has 24 divisors (see below), whose sum is σ = 404480412. Its totient is φ = 88148736.

The previous prime is 222531109. The next prime is 222531131. The reversal of 222531130 is 31135222.

222531130 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 6 ways, for example, as 72199009 + 150332121 = 8497^2 + 12261^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222531098 and 222531107.

It is not an unprimeable number, because it can be changed into a prime (222531131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117874 + ... + 119746.

Almost surely, 2^222531130 is an apocalyptic number.

222531130 is a deficient number, since it is larger than the sum of its proper divisors (181949282).

222531130 is a wasteful number, since it uses less digits than its factorization.

222531130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098 (or 1989 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 222531130 is about 14917.4773336513. The cubic root of 222531130 is about 605.9873956722.

Adding to 222531130 its reverse (31135222), we get a palindrome (253666352).

The spelling of 222531130 in words is "two hundred twenty-two million, five hundred thirty-one thousand, one hundred thirty".