111504222144 has 168 divisors, whose sum is σ = 372157325280. Its totient is φ = 31257188352.

The previous prime is 111504222143. The next prime is 111504222217. The reversal of 111504222144 is 441222405111.

111504222144 is a `hidden beast` number, since 1 + 11 + 504 + 2 + 2 + 2 + 144 = 666.

111504222144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111504222143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47199 + ... + 474590.

Almost surely, 2^111504222144 is an apocalyptic number.

111504222144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111504222144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186078662640).

111504222144 is an abundant number, since it is smaller than the sum of its proper divisors (260653103136).

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

111504222144 is a wasteful number, since it uses less digits than its factorization.

111504222144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521867 (or 521854 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

Adding to 111504222144 its reverse (441222405111), we get a palindrome (552726627255).

The spelling of 111504222144 in words is "one hundred eleven billion, five hundred four million, two hundred twenty-two thousand, one hundred forty-four".