211113201211 has 32 divisors (see below), whose sum is σ = 243020606400. Its totient is φ = 181612032000.

The previous prime is 211113201161. The next prime is 211113201241. The reversal of 211113201211 is 112102311112.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 211113201211 - 2¹³ = 211113193019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211113201241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5448675 + ... + 5487283.

It is an arithmetic number, because the mean of its divisors is an integer number (7594393950).

Almost surely, 2^211113201211 is an apocalyptic number.

211113201211 is a deficient number, since it is larger than the sum of its proper divisors (31907405189).

211113201211 is a wasteful number, since it uses less digits than its factorization.

211113201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38991.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 211113201211 its reverse (112102311112), we get a palindrome (323215512323).

The spelling of 211113201211 in words is "two hundred eleven billion, one hundred thirteen million, two hundred one thousand, two hundred eleven".