2122212222211 has 16 divisors (see below), whose sum is σ = 2203113507840. Its totient is φ = 2042120302560.

The previous prime is 2122212222203. The next prime is 2122212222217. The reversal of 2122212222211 is 1122222122212.

It is a cyclic number.

It is not a de Polignac number, because 2122212222211 - 2³ = 2122212222203 is a prime.

It is a super-2 number, since 2×2122212222211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122212222217) 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, 3760060 + ... + 4287478.

It is an arithmetic number, because the mean of its divisors is an integer number (137694594240).

Almost surely, 2^{2122212222211} is an apocalyptic number.

2122212222211 is a deficient number, since it is larger than the sum of its proper divisors (80901285629).

2122212222211 is a wasteful number, since it uses less digits than its factorization.

2122212222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528186.

The product of its digits is 512, while the sum is 22.

Adding to 2122212222211 its reverse (1122222122212), we get a palindrome (3244434344423).

Subtracting from 2122212222211 its reverse (1122222122212), we obtain a palindrome (999990099999).

The spelling of 2122212222211 in words is "two trillion, one hundred twenty-two billion, two hundred twelve million, two hundred twenty-two thousand, two hundred eleven".