111444041220 has 24 divisors (see below), whose sum is σ = 312043315584. Its totient is φ = 29718410976.

The previous prime is 111444041213. The next prime is 111444041239. The reversal of 111444041220 is 22140444111.

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 7 ways as a sum of consecutive naturals, for example, 928700284 + ... + 928700403.

It is an arithmetic number, because the mean of its divisors is an integer number (13001804816).

Almost surely, 2^111444041220 is an apocalyptic number.

111444041220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111444041220 is an abundant number, since it is smaller than the sum of its proper divisors (200599274364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111444041220 is a wasteful number, since it uses less digits than its factorization.

111444041220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857400699 (or 1857400697 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 111444041220 its reverse (22140444111), we get a palindrome (133584485331).

The spelling of 111444041220 in words is "one hundred eleven billion, four hundred forty-four million, forty-one thousand, two hundred twenty".