222222101210212 has 12 divisors (see below), whose sum is σ = 391136588547516. Its totient is φ = 110468790196640.

The previous prime is 222222101210173. The next prime is 222222101210227. The reversal of 222222101210212 is 212012101222222.

It can be written as a sum of positive squares in 2 ways, for example, as 96179131953216 + 126042969256996 = 9807096^2 + 11226886^2 .

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, 160565101339 + ... + 160565102722.

It is an arithmetic number, because the mean of its divisors is an integer number (32594715712293).

Almost surely, 2^{222222101210212} is an apocalyptic number.

It is an amenable number.

222222101210212 is a deficient number, since it is larger than the sum of its proper divisors (168914487337304).

222222101210212 is a wasteful number, since it uses less digits than its factorization.

222222101210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321130204238 (or 321130204236 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222222101210212 its reverse (212012101222222), we get a palindrome (434234202432434).

The spelling of 222222101210212 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one hundred one million, two hundred ten thousand, two hundred twelve".