222512330 has 16 divisors (see below), whose sum is σ = 410291784. Its totient is φ = 86833920.

The previous prime is 222512321. The next prime is 222512333. The reversal of 222512330 is 33215222.

It can be written as a sum of positive squares in 4 ways, for example, as 177608929 + 44903401 = 13327^2 + 6701^2 .

It is not an unprimeable number, because it can be changed into a prime (222512333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270947 + ... + 271766.

Almost surely, 2^222512330 is an apocalyptic number.

222512330 is a deficient number, since it is larger than the sum of its proper divisors (187779454).

222512330 is a wasteful number, since it uses less digits than its factorization.

222512330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542761.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 222512330 is about 14916.8471869896. The cubic root of 222512330 is about 605.9703300690.

Adding to 222512330 its reverse (33215222), we get a palindrome (255727552).

The spelling of 222512330 in words is "two hundred twenty-two million, five hundred twelve thousand, three hundred thirty".