212222101222 has 4 divisors (see below), whose sum is σ = 318333151836. Its totient is φ = 106111050610.

The previous prime is 212222101213. The next prime is 212222101241. The reversal of 212222101222 is 222101222212.

212222101222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 212222101222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53055525304 + ... + 53055525307.

It is an arithmetic number, because the mean of its divisors is an integer number (79583287959).

Almost surely, 2^212222101222 is an apocalyptic number.

212222101222 is a deficient number, since it is larger than the sum of its proper divisors (106111050614).

212222101222 is a wasteful number, since it uses less digits than its factorization.

212222101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106111050613.

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

Adding to 212222101222 its reverse (222101222212), we get a palindrome (434323323434).

The spelling of 212222101222 in words is "two hundred twelve billion, two hundred twenty-two million, one hundred one thousand, two hundred twenty-two".