23122112211 has 24 divisors (see below), whose sum is σ = 36495763200. Its totient is φ = 13989970800.

The previous prime is 23122112203. The next prime is 23122112297. The reversal of 23122112211 is 11221122132.

23122112211 is a `hidden beast` number, since 231 + 2 + 211 + 221 + 1 = 666.

It is not a de Polignac number, because 23122112211 - 2³ = 23122112203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23122112311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135655 + ... + 254256.

It is an arithmetic number, because the mean of its divisors is an integer number (1520656800).

Almost surely, 2^23122112211 is an apocalyptic number.

23122112211 is a deficient number, since it is larger than the sum of its proper divisors (13373650989).

23122112211 is a wasteful number, since it uses less digits than its factorization.

23122112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390527 (or 390524 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

Adding to 23122112211 its reverse (11221122132), we get a palindrome (34343234343).

It can be divided in two parts, 2 and 3122112211, that added together give a palindrome (3122112213).

The spelling of 23122112211 in words is "twenty-three billion, one hundred twenty-two million, one hundred twelve thousand, two hundred eleven".