11211110211 has 16 divisors (see below), whose sum is σ = 17289425664. Its totient is φ = 6329162784.

The previous prime is 11211110161. The next prime is 11211110263. The reversal of 11211110211 is 11201111211.

It is not a de Polignac number, because 11211110211 - 2¹⁴ = 11211093827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11211110011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3214296 + ... + 3217781.

It is an arithmetic number, because the mean of its divisors is an integer number (1080589104).

Almost surely, 2^11211110211 is an apocalyptic number.

11211110211 is a deficient number, since it is larger than the sum of its proper divisors (6078315453).

11211110211 is an equidigital number, since it uses as much as digits as its factorization.

11211110211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6432170.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11211110211 its reverse (11201111211), we get a palindrome (22412221422).

The spelling of 11211110211 in words is "eleven billion, two hundred eleven million, one hundred ten thousand, two hundred eleven".