210212122222 has 12 divisors (see below), whose sum is σ = 315952098336. Its totient is φ = 104895179220.

The previous prime is 210212122199. The next prime is 210212122229. The reversal of 210212122222 is 222221212012.

It is a self number, because there is not a number n which added to its sum of digits gives 210212122222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210212122229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 286947 + ... + 709057.

It is an arithmetic number, because the mean of its divisors is an integer number (26329341528).

Almost surely, 2^210212122222 is an apocalyptic number.

210212122222 is a deficient number, since it is larger than the sum of its proper divisors (105739976114).

210212122222 is an frugal number, since it uses more digits than its factorization.

210212122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423111 (or 422612 counting only the distinct ones).

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

Adding to 210212122222 its reverse (222221212012), we get a palindrome (432433334234).

It can be divided in two parts, 2102 and 12122222, that added together give a square (12124324 = 3482²).

The spelling of 210212122222 in words is "two hundred ten billion, two hundred twelve million, one hundred twenty-two thousand, two hundred twenty-two".