221112360 has 96 divisors (see below), whose sum is σ = 821283840. Its totient is φ = 50539392.

The previous prime is 221112349. The next prime is 221112361. The reversal of 221112360 is 63211122.

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

It is not an unprimeable number, because it can be changed into a prime (221112361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41352 + ... + 46391.

It is an arithmetic number, because the mean of its divisors is an integer number (8555040).

Almost surely, 2^221112360 is an apocalyptic number.

221112360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221112360 is an abundant number, since it is smaller than the sum of its proper divisors (600171480).

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

221112360 is a wasteful number, since it uses less digits than its factorization.

221112360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87767 (or 87760 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 221112360 is about 14869.8473428613. The cubic root of 221112360 is about 604.6968041154.

Adding to 221112360 its reverse (63211122), we get a palindrome (284323482).

The spelling of 221112360 in words is "two hundred twenty-one million, one hundred twelve thousand, three hundred sixty".