2122113211 has 4 divisors (see below), whose sum is σ = 2233803400. Its totient is φ = 2010423024.

The previous prime is 2122113197. The next prime is 2122113283. The reversal of 2122113211 is 1123112212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122113211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2122113011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55845066 + ... + 55845103.

It is an arithmetic number, because the mean of its divisors is an integer number (558450850).

Almost surely, 2^2122113211 is an apocalyptic number.

2122113211 is a deficient number, since it is larger than the sum of its proper divisors (111690189).

2122113211 is a wasteful number, since it uses less digits than its factorization.

2122113211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111690188.

The product of its digits is 48, while the sum is 16.

The square root of 2122113211 is about 46066.4000221420. The cubic root of 2122113211 is about 1285.0583552357.

Adding to 2122113211 its reverse (1123112212), we get a palindrome (3245225423).

Subtracting from 2122113211 its reverse (1123112212), we obtain a palindrome (999000999).

The spelling of 2122113211 in words is "two billion, one hundred twenty-two million, one hundred thirteen thousand, two hundred eleven".