11211022210211 has 4 divisors (see below), whose sum is σ = 11211765513912. Its totient is φ = 11210278906512.

The previous prime is 11211022210163. The next prime is 11211022210261. The reversal of 11211022210211 is 11201222011211.

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

It is a cyclic number.

It is not a de Polignac number, because 11211022210211 - 2³⁸ = 10936144303267 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11211022210211.

It is not an unprimeable number, because it can be changed into a prime (11211022210261) 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, 371629226 + ... + 371659391.

It is an arithmetic number, because the mean of its divisors is an integer number (2802941378478).

Almost surely, 2^{11211022210211} is an apocalyptic number.

11211022210211 is a deficient number, since it is larger than the sum of its proper divisors (743303701).

11211022210211 is an equidigital number, since it uses as much as digits as its factorization.

11211022210211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743303700.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11211022210211 its reverse (11201222011211), we get a palindrome (22412244221422).

The spelling of 11211022210211 in words is "eleven trillion, two hundred eleven billion, twenty-two million, two hundred ten thousand, two hundred eleven".