22111112201111 has 2 divisors, whose sum is σ = 22111112201112. Its totient is φ = 22111112201110.

The previous prime is 22111112201069. The next prime is 22111112201149. The reversal of 22111112201111 is 11110221111122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22111112201111 - 2³⁴ = 22093932331927 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22111112201111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22111112201411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055556100555 + 11055556100556.

It is an arithmetic number, because the mean of its divisors is an integer number (11055556100556).

Almost surely, 2^{22111112201111} is an apocalyptic number.

22111112201111 is a deficient number, since it is larger than the sum of its proper divisors (1).

22111112201111 is an equidigital number, since it uses as much as digits as its factorization.

22111112201111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 22111112201111 its reverse (11110221111122), we get a palindrome (33221333312233).

The spelling of 22111112201111 in words is "twenty-two trillion, one hundred eleven billion, one hundred twelve million, two hundred one thousand, one hundred eleven".