2122111211211 has 12 divisors (see below), whose sum is σ = 3065360819040. Its totient is φ = 1414699698480.

The previous prime is 2122111211203. The next prime is 2122111211237. The reversal of 2122111211211 is 1121121112212.

It is a happy number.

2122111211211 is a `hidden beast` number, since 21 + 221 + 1 + 1 + 211 + 211 = 666.

It is not a de Polignac number, because 2122111211211 - 2³ = 2122111211203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2122111211201) 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, 3097155 + ... + 3719756.

It is an arithmetic number, because the mean of its divisors is an integer number (255446734920).

Almost surely, 2^{2122111211211} is an apocalyptic number.

2122111211211 is a deficient number, since it is larger than the sum of its proper divisors (943249607829).

2122111211211 is a wasteful number, since it uses less digits than its factorization.

2122111211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6851506 (or 6851503 counting only the distinct ones).

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

Adding to 2122111211211 its reverse (1121121112212), we get a palindrome (3243232323423).

The spelling of 2122111211211 in words is "two trillion, one hundred twenty-two billion, one hundred eleven million, two hundred eleven thousand, two hundred eleven".