211121021112011 has 16 divisors (see below), whose sum is σ = 231759411321600. Its totient is φ = 191673616773408.

The previous prime is 211121021111989. The next prime is 211121021112013. The reversal of 211121021112011 is 110211120121112.

211121021112011 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-211121021112011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211121021112013) 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, 2682361241 + ... + 2682439946.

It is an arithmetic number, because the mean of its divisors is an integer number (14484963207600).

Almost surely, 2^{211121021112011} is an apocalyptic number.

211121021112011 is a deficient number, since it is larger than the sum of its proper divisors (20638390209589).

211121021112011 is a wasteful number, since it uses less digits than its factorization.

211121021112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5364801298.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 211121021112011 its reverse (110211120121112), we get a palindrome (321332141233123).

The spelling of 211121021112011 in words is "two hundred eleven trillion, one hundred twenty-one billion, twenty-one million, one hundred twelve thousand, eleven".