22112212122211 has 2 divisors, whose sum is σ = 22112212122212. Its totient is φ = 22112212122210.

The previous prime is 22112212122197. The next prime is 22112212122233. The reversal of 22112212122211 is 11222121221122.

It is an a-pointer prime, because the next prime (22112212122233) can be obtained adding 22112212122211 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22112212122211 - 2⁵ = 22112212122179 is a prime.

It is not a weakly prime, because it can be changed into another prime (22112212126211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056106061105 + 11056106061106.

It is an arithmetic number, because the mean of its divisors is an integer number (11056106061106).

Almost surely, 2^{22112212122211} is an apocalyptic number.

22112212122211 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112212122211 is an equidigital number, since it uses as much as digits as its factorization.

22112212122211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 256, while the sum is 22.

Adding to 22112212122211 its reverse (11222121221122), we get a palindrome (33334333343333).

The spelling of 22112212122211 in words is "twenty-two trillion, one hundred twelve billion, two hundred twelve million, one hundred twenty-two thousand, two hundred eleven".