2122211122211 has 4 divisors (see below), whose sum is σ = 2162252841552. Its totient is φ = 2082169402872.

The previous prime is 2122211122159. The next prime is 2122211122217. The reversal of 2122211122211 is 1122211122212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2122211122211 - 2²⁶ = 2122144013347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122211122217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20020859591 + ... + 20020859696.

It is an arithmetic number, because the mean of its divisors is an integer number (540563210388).

Almost surely, 2^{2122211122211} is an apocalyptic number.

2122211122211 is a deficient number, since it is larger than the sum of its proper divisors (40041719341).

2122211122211 is an equidigital number, since it uses as much as digits as its factorization.

2122211122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40041719340.

The product of its digits is 128, while the sum is 20.

Adding to 2122211122211 its reverse (1122211122212), we get a palindrome (3244422244423).

Subtracting from 2122211122211 its reverse (1122211122212), we obtain a palindrome (999999999999).

It can be divided in two parts, 2122211 and 122211, that added together give a palindrome (2244422).

The spelling of 2122211122211 in words is "two trillion, one hundred twenty-two billion, two hundred eleven million, one hundred twenty-two thousand, two hundred eleven".