2122212211 has 16 divisors (see below), whose sum is σ = 2440811520. Its totient is φ = 1807505280.

The previous prime is 2122212179. The next prime is 2122212227. The reversal of 2122212211 is 1122122212.

It is a happy number.

It is not a de Polignac number, because 2122212211 - 2⁵ = 2122212179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2122212271) 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, 980971 + ... + 983131.

It is an arithmetic number, because the mean of its divisors is an integer number (152550720).

Almost surely, 2^2122212211 is an apocalyptic number.

2122212211 is a deficient number, since it is larger than the sum of its proper divisors (318599309).

2122212211 is a wasteful number, since it uses less digits than its factorization.

2122212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2994.

The product of its digits is 64, while the sum is 16.

The square root of 2122212211 is about 46067.4745454968. The cubic root of 2122212211 is about 1285.0783382725.

Adding to 2122212211 its reverse (1122122212), we get a palindrome (3244334423).

It can be divided in two parts, 21222 and 12211, that added together give a palindrome (33433).

The spelling of 2122212211 in words is "two billion, one hundred twenty-two million, two hundred twelve thousand, two hundred eleven".