222131212 has 12 divisors (see below), whose sum is σ = 397000800. Its totient is φ = 108702416.

The previous prime is 222131201. The next prime is 222131233. The reversal of 222131212 is 212131222.

It is a happy number.

222131212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590587 + ... + 590962.

It is an arithmetic number, because the mean of its divisors is an integer number (33083400).

Almost surely, 2^222131212 is an apocalyptic number.

It is an amenable number.

222131212 is a deficient number, since it is larger than the sum of its proper divisors (174869588).

222131212 is a wasteful number, since it uses less digits than its factorization.

222131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181600 (or 1181598 counting only the distinct ones).

The product of its digits is 96, while the sum is 16.

The square root of 222131212 is about 14904.0669617390. The cubic root of 222131212 is about 605.6241647121.

Adding to 222131212 its reverse (212131222), we get a palindrome (434262434).

It can be divided in two parts, 2221 and 31212, that added together give a palindrome (33433).

The spelling of 222131212 in words is "two hundred twenty-two million, one hundred thirty-one thousand, two hundred twelve".