222122210212 has 24 divisors (see below), whose sum is σ = 444420083520. Its totient is φ = 95157590880.

The previous prime is 222122210183. The next prime is 222122210237. The reversal of 222122210212 is 212012221222.

It is a self number, because there is not a number n which added to its sum of digits gives 222122210212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1496287 + ... + 1638022.

It is an arithmetic number, because the mean of its divisors is an integer number (18517503480).

Almost surely, 2^222122210212 is an apocalyptic number.

It is an amenable number.

222122210212 is an abundant number, since it is smaller than the sum of its proper divisors (222297873308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222122210212 is a wasteful number, since it uses less digits than its factorization.

222122210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3136851 (or 3136849 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222122210212 its reverse (212012221222), we get a palindrome (434134431434).

The spelling of 222122210212 in words is "two hundred twenty-two billion, one hundred twenty-two million, two hundred ten thousand, two hundred twelve".