111221310344 has 16 divisors (see below), whose sum is σ = 219515744400. Its totient is φ = 52683778512.

The previous prime is 111221310329. The next prime is 111221310353. The reversal of 111221310344 is 443013122111.

It is a super-2 number, since 2×111221310344² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365859422 + ... + 365859725.

It is an arithmetic number, because the mean of its divisors is an integer number (13719734025).

Almost surely, 2^111221310344 is an apocalyptic number.

It is an amenable number.

111221310344 is a deficient number, since it is larger than the sum of its proper divisors (108294434056).

111221310344 is a wasteful number, since it uses less digits than its factorization.

111221310344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731719172 (or 731719168 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 111221310344 its reverse (443013122111), we get a palindrome (554234432455).

The spelling of 111221310344 in words is "one hundred eleven billion, two hundred twenty-one million, three hundred ten thousand, three hundred forty-four".