212213202222 has 48 divisors (see below), whose sum is σ = 493923951360. Its totient is φ = 60607359792.

The previous prime is 212213202217. The next prime is 212213202251. The reversal of 212213202222 is 222202312212.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 571929 + ... + 866907.

It is an arithmetic number, because the mean of its divisors is an integer number (10290082320).

Almost surely, 2^212213202222 is an apocalyptic number.

212213202222 is an abundant number, since it is smaller than the sum of its proper divisors (281710749138).

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

212213202222 is a wasteful number, since it uses less digits than its factorization.

212213202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297445 (or 297438 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 212213202222 its reverse (222202312212), we get a palindrome (434415514434).

The spelling of 212213202222 in words is "two hundred twelve billion, two hundred thirteen million, two hundred two thousand, two hundred twenty-two".