112221504 has 112 divisors (see below), whose sum is σ = 333695040. Its totient is φ = 36979200.

The previous prime is 112221491. The next prime is 112221509. The reversal of 112221504 is 405122211.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112221509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174207 + ... + 174849.

It is an arithmetic number, because the mean of its divisors is an integer number (2979420).

Almost surely, 2^112221504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112221504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166847520).

112221504 is an abundant number, since it is smaller than the sum of its proper divisors (221473536).

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

112221504 is a wasteful number, since it uses less digits than its factorization.

112221504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 112221504 is about 10593.4651554626. The cubic root of 112221504 is about 482.3460150969.

Adding to 112221504 its reverse (405122211), we get a palindrome (517343715).

The spelling of 112221504 in words is "one hundred twelve million, two hundred twenty-one thousand, five hundred four".