22112112211 has 48 divisors (see below), whose sum is σ = 27331153920. Its totient is φ = 17518279680.

The previous prime is 22112112193. The next prime is 22112112221. The reversal of 22112112211 is 11221121122.

It is not a de Polignac number, because 22112112211 - 2¹⁵ = 22112079443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22112112221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34388656 + ... + 34389298.

It is an arithmetic number, because the mean of its divisors is an integer number (569399040).

Almost surely, 2^22112112211 is an apocalyptic number.

22112112211 is a deficient number, since it is larger than the sum of its proper divisors (5219041709).

22112112211 is a wasteful number, since it uses less digits than its factorization.

22112112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964 (or 947 counting only the distinct ones).

The product of its digits is 32, while the sum is 16.

Adding to 22112112211 its reverse (11221121122), we get a palindrome (33333233333).

It can be divided in two parts, 221121122 and 11, that multiplied together give a palindrome (2432332342).

The spelling of 22112112211 in words is "twenty-two billion, one hundred twelve million, one hundred twelve thousand, two hundred eleven".