112111222211 has 4 divisors (see below), whose sum is σ = 113461959912. Its totient is φ = 110760484512.

The previous prime is 112111222199. The next prime is 112111222247. The reversal of 112111222211 is 112222111211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112111222211 is a prime.

It is a super-2 number, since 2×112111222211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112111222211.

It is not an unprimeable number, because it can be changed into a prime (112111222291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675368726 + ... + 675368891.

It is an arithmetic number, because the mean of its divisors is an integer number (28365489978).

Almost surely, 2^112111222211 is an apocalyptic number.

112111222211 is a deficient number, since it is larger than the sum of its proper divisors (1350737701).

112111222211 is an equidigital number, since it uses as much as digits as its factorization.

112111222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350737700.

The product of its digits is 32, while the sum is 17.

Adding to 112111222211 its reverse (112222111211), we get a palindrome (224333333422).

The spelling of 112111222211 in words is "one hundred twelve billion, one hundred eleven million, two hundred twenty-two thousand, two hundred eleven".