222202201212 has 30 divisors (see below), whose sum is σ = 580880446608. Its totient is φ = 74067400296.

The previous prime is 222202201153. The next prime is 222202201231. The reversal of 222202201212 is 212102202222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 342904308 + ... + 342904955.

Almost surely, 2^222202201212 is an apocalyptic number.

It is an amenable number.

222202201212 is an abundant number, since it is smaller than the sum of its proper divisors (358678245396).

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

222202201212 is a wasteful number, since it uses less digits than its factorization.

222202201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685809279 (or 685809268 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222202201212 its reverse (212102202222), we get a palindrome (434304403434).

The spelling of 222202201212 in words is "two hundred twenty-two billion, two hundred two million, two hundred one thousand, two hundred twelve".