105500222111 has 4 divisors (see below), whose sum is σ = 111052865400. Its totient is φ = 99947578824.

The previous prime is 105500222077. The next prime is 105500222129. The reversal of 105500222111 is 111222005501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105500222111 - 2³⁴ = 88320352927 is a prime.

It is a super-2 number, since 2×105500222111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105500224111) 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 in 3 ways as a sum of consecutive naturals, for example, 2776321616 + ... + 2776321653.

It is an arithmetic number, because the mean of its divisors is an integer number (27763216350).

Almost surely, 2^105500222111 is an apocalyptic number.

105500222111 is a deficient number, since it is larger than the sum of its proper divisors (5552643289).

105500222111 is an equidigital number, since it uses as much as digits as its factorization.

105500222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5552643288.

The product of its (nonzero) digits is 200, while the sum is 20.

Adding to 105500222111 its reverse (111222005501), we get a palindrome (216722227612).

The spelling of 105500222111 in words is "one hundred five billion, five hundred million, two hundred twenty-two thousand, one hundred eleven".