111122311222 has 32 divisors (see below), whose sum is σ = 179852279040. Its totient is φ = 51188198400.

The previous prime is 111122311217. The next prime is 111122311229. The reversal of 111122311222 is 222113221111.

It is a self number, because there is not a number n which added to its sum of digits gives 111122311222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111122311229) 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 15 ways as a sum of consecutive naturals, for example, 44932978 + ... + 44935450.

It is an arithmetic number, because the mean of its divisors is an integer number (5620383720).

Almost surely, 2^111122311222 is an apocalyptic number.

111122311222 is a deficient number, since it is larger than the sum of its proper divisors (68729967818).

111122311222 is a wasteful number, since it uses less digits than its factorization.

111122311222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5128.

The product of its digits is 96, while the sum is 19.

Adding to 111122311222 its reverse (222113221111), we get a palindrome (333235532333).

The spelling of 111122311222 in words is "one hundred eleven billion, one hundred twenty-two million, three hundred eleven thousand, two hundred twenty-two".