22112120211 has 4 divisors (see below), whose sum is σ = 29482826952. Its totient is φ = 14741413472.

The previous prime is 22112120209. The next prime is 22112120249. The reversal of 22112120211 is 11202121122.

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

It is a cyclic number.

It is not a de Polignac number, because 22112120211 - 2¹ = 22112120209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22112120281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3685353366 + ... + 3685353371.

It is an arithmetic number, because the mean of its divisors is an integer number (7370706738).

Almost surely, 2^22112120211 is an apocalyptic number.

22112120211 is a deficient number, since it is larger than the sum of its proper divisors (7370706741).

22112120211 is an equidigital number, since it uses as much as digits as its factorization.

22112120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7370706740.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22112120211 its reverse (11202121122), we get a palindrome (33314241333).

The spelling of 22112120211 in words is "twenty-two billion, one hundred twelve million, one hundred twenty thousand, two hundred eleven".