211100201211 has 4 divisors (see below), whose sum is σ = 281466934952. Its totient is φ = 140733467472.

The previous prime is 211100201173. The next prime is 211100201219. The reversal of 211100201211 is 112102001112.

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

It is not a de Polignac number, because 211100201211 - 2²⁷ = 210965983483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211100201219) 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, 35183366866 + ... + 35183366871.

It is an arithmetic number, because the mean of its divisors is an integer number (70366733738).

Almost surely, 2^211100201211 is an apocalyptic number.

211100201211 is a deficient number, since it is larger than the sum of its proper divisors (70366733741).

211100201211 is an equidigital number, since it uses as much as digits as its factorization.

211100201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70366733740.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 211100201211 its reverse (112102001112), we get a palindrome (323202202323).

The spelling of 211100201211 in words is "two hundred eleven billion, one hundred million, two hundred one thousand, two hundred eleven".