2123222211 has 36 divisors (see below), whose sum is σ = 3487323840. Its totient is φ = 1242410400.

The previous prime is 2123222197. The next prime is 2123222219. The reversal of 2123222211 is 1122223212.

It is not a de Polignac number, because 2123222211 - 2⁹ = 2123221699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2123222219) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2035 + ... + 65196.

Almost surely, 2^2123222211 is an apocalyptic number.

2123222211 is a deficient number, since it is larger than the sum of its proper divisors (1364101629).

2123222211 is a wasteful number, since it uses less digits than its factorization.

2123222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67288 (or 67274 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 2123222211 is about 46078.4354226573. The cubic root of 2123222211 is about 1285.2821701146.

Adding to 2123222211 its reverse (1122223212), we get a palindrome (3245445423).

It can be divided in two parts, 21 and 23222211, that added together give a palindrome (23222232).

The spelling of 2123222211 in words is "two billion, one hundred twenty-three million, two hundred twenty-two thousand, two hundred eleven".