111101112211 has 4 divisors (see below), whose sum is σ = 112439679912. Its totient is φ = 109762544512.

The previous prime is 111101112191. The next prime is 111101112229. The reversal of 111101112211 is 112211101111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112211101111 = 53 ⋅2117190587.

It is a cyclic number.

It is not a de Polignac number, because 111101112211 - 2²⁵ = 111067557779 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111101112191 and 111101112200.

It is not an unprimeable number, because it can be changed into a prime (111101112251) 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, 669283726 + ... + 669283891.

It is an arithmetic number, because the mean of its divisors is an integer number (28109919978).

Almost surely, 2^111101112211 is an apocalyptic number.

111101112211 is a deficient number, since it is larger than the sum of its proper divisors (1338567701).

111101112211 is an equidigital number, since it uses as much as digits as its factorization.

111101112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338567700.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111101112211 its reverse (112211101111), we get a palindrome (223312213322).

The spelling of 111101112211 in words is "one hundred eleven billion, one hundred one million, one hundred twelve thousand, two hundred eleven".