11211021122211 has 24 divisors (see below), whose sum is σ = 16228513926144. Its totient is φ = 7457947778160.

The previous prime is 11211021122167. The next prime is 11211021122251. The reversal of 11211021122211 is 11222112011211.

It is a happy number.

11211021122211 is a `hidden beast` number, since 11 + 211 + 0 + 211 + 22 + 211 = 666.

11211021122211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11211021122211 - 2¹⁴ = 11211021105827 is a prime.

It is a super-2 number, since 2×11211021122211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11211021122251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47424496 + ... + 47660306.

It is an arithmetic number, because the mean of its divisors is an integer number (676188080256).

Almost surely, 2^{11211021122211} is an apocalyptic number.

11211021122211 is a deficient number, since it is larger than the sum of its proper divisors (5017492803933).

11211021122211 is a wasteful number, since it uses less digits than its factorization.

11211021122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247151 (or 247148 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11211021122211 its reverse (11222112011211), we get a palindrome (22433133133422).

The spelling of 11211021122211 in words is "eleven trillion, two hundred eleven billion, twenty-one million, one hundred twenty-two thousand, two hundred eleven".