111001012221011 has 16 divisors (see below), whose sum is σ = 125011676156928. Its totient is φ = 97644326925600.

The previous prime is 111001012220947. The next prime is 111001012221017. The reversal of 111001012221011 is 110122210100111.

It is not a de Polignac number, because 111001012221011 - 2⁶ = 111001012220947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111001012221017) 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, 14367416 + ... + 20698421.

It is an arithmetic number, because the mean of its divisors is an integer number (7813229759808).

Almost surely, 2^{111001012221011} is an apocalyptic number.

111001012221011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111001012221011 is a deficient number, since it is larger than the sum of its proper divisors (14010663935917).

111001012221011 is a wasteful number, since it uses less digits than its factorization.

111001012221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35075162.

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

Adding to 111001012221011 its reverse (110122210100111), we get a palindrome (221123222321122).

The spelling of 111001012221011 in words is "one hundred eleven trillion, one billion, twelve million, two hundred twenty-one thousand, eleven".