22112212211 has 2 divisors, whose sum is σ = 22112212212. Its totient is φ = 22112212210.

The previous prime is 22112212169. The next prime is 22112212219. The reversal of 22112212211 is 11221221122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22112212211 - 2³⁴ = 4932343027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22112212211.

It is not a weakly prime, because it can be changed into another prime (22112212219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056106105 + 11056106106.

It is an arithmetic number, because the mean of its divisors is an integer number (11056106106).

Almost surely, 2^22112212211 is an apocalyptic number.

22112212211 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112212211 is an equidigital number, since it uses as much as digits as its factorization.

22112212211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64, while the sum is 17.

Adding to 22112212211 its reverse (11221221122), we get a palindrome (33333433333).

It can be divided in two parts, 22 and 112212211, that multiplied together give a palindrome (2468668642).

The spelling of 22112212211 in words is "twenty-two billion, one hundred twelve million, two hundred twelve thousand, two hundred eleven".