11211001122211 has 12 divisors (see below), whose sum is σ = 12352473007272. Its totient is φ = 10090910000000.

The previous prime is 11211001122169. The next prime is 11211001122241. The reversal of 11211001122211 is 11222110011211.

11211001122211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-11211001122211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11211001122241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49842790 + ... + 50067211.

It is an arithmetic number, because the mean of its divisors is an integer number (1029372750606).

Almost surely, 2^{11211001122211} is an apocalyptic number.

11211001122211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11211001122211 is a deficient number, since it is larger than the sum of its proper divisors (1141471885061).

11211001122211 is an equidigital number, since it uses as much as digits as its factorization.

11211001122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99910214 (or 99910113 counting only the distinct ones).

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

Adding to 11211001122211 its reverse (11222110011211), we get a palindrome (22433111133422).

The spelling of 11211001122211 in words is "eleven trillion, two hundred eleven billion, one million, one hundred twenty-two thousand, two hundred eleven".