111222222222011 has 16 divisors (see below), whose sum is σ = 113342969779200. Its totient is φ = 109117842036000.

The previous prime is 111222222221959. The next prime is 111222222222017. The reversal of 111222222222011 is 110222222222111.

It is a cyclic number.

It is not a de Polignac number, because 111222222222011 - 2³⁴ = 111205042352827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111222222222017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12553586 + ... + 19494536.

It is an arithmetic number, because the mean of its divisors is an integer number (7083935611200).

Almost surely, 2^{111222222222011} is an apocalyptic number.

111222222222011 is a deficient number, since it is larger than the sum of its proper divisors (2120747557189).

111222222222011 is an equidigital number, since it uses as much as digits as its factorization.

111222222222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6942130.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 111222222222011 its reverse (110222222222111), we get a palindrome (221444444444122).

The spelling of 111222222222011 in words is "one hundred eleven trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, eleven".