222320212 has 24 divisors (see below), whose sum is σ = 392648256. Its totient is φ = 110140608.

The previous prime is 222320209. The next prime is 222320261. The reversal of 222320212 is 212023222.

222320212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244663 + ... + 245569.

It is an arithmetic number, because the mean of its divisors is an integer number (16360344).

Almost surely, 2^222320212 is an apocalyptic number.

It is an amenable number.

222320212 is a deficient number, since it is larger than the sum of its proper divisors (170328044).

222320212 is a wasteful number, since it uses less digits than its factorization.

222320212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407 (or 1405 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 222320212 is about 14910.4061648233. The cubic root of 222320212 is about 605.7958808161.

Adding to 222320212 its reverse (212023222), we get a palindrome (434343434).

The spelling of 222320212 in words is "two hundred twenty-two million, three hundred twenty thousand, two hundred twelve".