211202111222 has 4 divisors (see below), whose sum is σ = 316803166836. Its totient is φ = 105601055610.

The previous prime is 211202111221. The next prime is 211202111231. The reversal of 211202111222 is 222111202112.

211202111222 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 211202111222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211202111221) by changing a digit.

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, 52800527804 + ... + 52800527807.

It is an arithmetic number, because the mean of its divisors is an integer number (79200791709).

Almost surely, 2^211202111222 is an apocalyptic number.

211202111222 is a deficient number, since it is larger than the sum of its proper divisors (105601055614).

211202111222 is a wasteful number, since it uses less digits than its factorization.

211202111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105601055613.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211202111222 its reverse (222111202112), we get a palindrome (433313313334).

The spelling of 211202111222 in words is "two hundred eleven billion, two hundred two million, one hundred eleven thousand, two hundred twenty-two".