111011222111 has 8 divisors (see below), whose sum is σ = 113138889600. Its totient is φ = 108903722400.

The previous prime is 111011222071. The next prime is 111011222131. The reversal of 111011222111 is 111222110111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111011222111 - 2¹⁴ = 111011205727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111011222131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5030831 + ... + 5052848.

It is an arithmetic number, because the mean of its divisors is an integer number (14142361200).

Almost surely, 2^111011222111 is an apocalyptic number.

111011222111 is a deficient number, since it is larger than the sum of its proper divisors (2127667489).

111011222111 is a wasteful number, since it uses less digits than its factorization.

111011222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10083889.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111011222111 its reverse (111222110111), we get a palindrome (222233332222).

The spelling of 111011222111 in words is "one hundred eleven billion, eleven million, two hundred twenty-two thousand, one hundred eleven".