212011110211222 has 16 divisors (see below), whose sum is σ = 375980293971360. Its totient is φ = 87728735259648.

The previous prime is 212011110211163. The next prime is 212011110211249. The reversal of 212011110211222 is 222112011110212.

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 212011110211222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261097425963 + ... + 261097426774.

It is an arithmetic number, because the mean of its divisors is an integer number (23498768373210).

Almost surely, 2^{212011110211222} is an apocalyptic number.

212011110211222 is a deficient number, since it is larger than the sum of its proper divisors (163969183760138).

212011110211222 is a wasteful number, since it uses less digits than its factorization.

212011110211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522194852775.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212011110211222 its reverse (222112011110212), we get a palindrome (434123121321434).

The spelling of 212011110211222 in words is "two hundred twelve trillion, eleven billion, one hundred ten million, two hundred eleven thousand, two hundred twenty-two".