22031222111 has 2 divisors, whose sum is σ = 22031222112. Its totient is φ = 22031222110.

The previous prime is 22031222093. The next prime is 22031222149. The reversal of 22031222111 is 11122213022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22031222111 - 2⁶ = 22031222047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22031222111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22031222711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11015611055 + 11015611056.

It is an arithmetic number, because the mean of its divisors is an integer number (11015611056).

Almost surely, 2^22031222111 is an apocalyptic number.

22031222111 is a deficient number, since it is larger than the sum of its proper divisors (1).

22031222111 is an equidigital number, since it uses as much as digits as its factorization.

22031222111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22031222111 its reverse (11122213022), we get a palindrome (33153435133).

The spelling of 22031222111 in words is "twenty-two billion, thirty-one million, two hundred twenty-two thousand, one hundred eleven".