11220220220211 has 12 divisors (see below), whose sum is σ = 16213635177792. Its totient is φ = 7477077391056.

The previous prime is 11220220220179. The next prime is 11220220220233. The reversal of 11220220220211 is 11202202202211.

It is a happy number.

11220220220211 is a `hidden beast` number, since 1 + 1 + 220 + 220 + 220 + 2 + 1 + 1 = 666.

11220220220211 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 11220220220211 - 2⁵ = 11220220220179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11220220290211) 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, 255762051 + ... + 255805916.

It is an arithmetic number, because the mean of its divisors is an integer number (1351136264816).

Almost surely, 2^{11220220220211} is an apocalyptic number.

11220220220211 is a deficient number, since it is larger than the sum of its proper divisors (4993414957581).

11220220220211 is a wasteful number, since it uses less digits than its factorization.

11220220220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511570410 (or 511570407 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11220220220211 its reverse (11202202202211), we get a palindrome (22422422422422).

The spelling of 11220220220211 in words is "eleven trillion, two hundred twenty billion, two hundred twenty million, two hundred twenty thousand, two hundred eleven".