1222522112111 has 2 divisors, whose sum is σ = 1222522112112. Its totient is φ = 1222522112110.

The previous prime is 1222522112093. The next prime is 1222522112173. The reversal of 1222522112111 is 1112112252221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222522112111 - 2⁶ = 1222522112047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222522162111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611261056055 + 611261056056.

It is an arithmetic number, because the mean of its divisors is an integer number (611261056056).

Almost surely, 2^{1222522112111} is an apocalyptic number.

1222522112111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222522112111 is an equidigital number, since it uses as much as digits as its factorization.

1222522112111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 320, while the sum is 23.

Adding to 1222522112111 its reverse (1112112252221), we get a palindrome (2334634364332).

The spelling of 1222522112111 in words is "one trillion, two hundred twenty-two billion, five hundred twenty-two million, one hundred twelve thousand, one hundred eleven".