111122011222011 has 12 divisors (see below), whose sum is σ = 160509719524440. Its totient is φ = 74081272618080.

The previous prime is 111122011222009. The next prime is 111122011222043. The reversal of 111122011222011 is 110222110221111.

It is a happy number.

111122011222011 is a `hidden beast` number, since 1 + 111 + 220 + 112 + 220 + 1 + 1 = 666.

It is not a de Polignac number, because 111122011222011 - 2¹ = 111122011222009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111122011222811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5873596 + ... + 16023206.

It is an arithmetic number, because the mean of its divisors is an integer number (13375809960370).

Almost surely, 2^{111122011222011} is an apocalyptic number.

111122011222011 is a deficient number, since it is larger than the sum of its proper divisors (49387708302429).

111122011222011 is a wasteful number, since it uses less digits than its factorization.

111122011222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11366106 (or 11366103 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111122011222011 its reverse (110222110221111), we get a palindrome (221344121443122).

The spelling of 111122011222011 in words is "one hundred eleven trillion, one hundred twenty-two billion, eleven million, two hundred twenty-two thousand, eleven".