212102120222 has 16 divisors (see below), whose sum is σ = 332524036512. Its totient is φ = 101275722240.

The previous prime is 212102120207. The next prime is 212102120227. The reversal of 212102120222 is 222021201212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 212102120222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212102120227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3708179 + ... + 3764942.

It is an arithmetic number, because the mean of its divisors is an integer number (20782752282).

Almost surely, 2^212102120222 is an apocalyptic number.

212102120222 is a deficient number, since it is larger than the sum of its proper divisors (120421916290).

212102120222 is a wasteful number, since it uses less digits than its factorization.

212102120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7473763.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212102120222 its reverse (222021201212), we get a palindrome (434123321434).

The spelling of 212102120222 in words is "two hundred twelve billion, one hundred two million, one hundred twenty thousand, two hundred twenty-two".