22112212210211 has 4 divisors (see below), whose sum is σ = 22112221873800. Its totient is φ = 22112202546624.

The previous prime is 22112212210169. The next prime is 22112212210213. The reversal of 22112212210211 is 11201221221122.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22112212210211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22112212210213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749600 + ... + 6692258.

It is an arithmetic number, because the mean of its divisors is an integer number (5528055468450).

Almost surely, 2^{22112212210211} is an apocalyptic number.

22112212210211 is a deficient number, since it is larger than the sum of its proper divisors (9663589).

22112212210211 is an equidigital number, since it uses as much as digits as its factorization.

22112212210211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9663588.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 22112212210211 its reverse (11201221221122), we get a palindrome (33313433431333).

The spelling of 22112212210211 in words is "twenty-two trillion, one hundred twelve billion, two hundred twelve million, two hundred ten thousand, two hundred eleven".