112205 has 4 divisors (see below), whose sum is σ = 134652. Its totient is φ = 89760.

The previous prime is 112199. The next prime is 112207. The reversal of 112205 is 502211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 502211 = 349 ⋅1439.

It can be written as a sum of positive squares in 2 ways, for example, as 17956 + 94249 = 134^2 + 307^2 .

It is not a de Polignac number, because 112205 - 2⁸ = 111949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11216 + ... + 11225.

It is an arithmetic number, because the mean of its divisors is an integer number (33663).

2¹¹²²⁰⁵ is an apocalyptic number.

It is an amenable number.

112205 is a deficient number, since it is larger than the sum of its proper divisors (22447).

112205 is an equidigital number, since it uses as much as digits as its factorization.

112205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22446.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 112205 is about 334.9701479237. The cubic root of 112205 is about 48.2322368325.

Adding to 112205 its product of nonzero digits (20), we get a square (112225 = 335²).

Adding to 112205 its reverse (502211), we get a palindrome (614416).

The spelling of 112205 in words is "one hundred twelve thousand, two hundred five".