112120205 has 4 divisors (see below), whose sum is σ = 134544252. Its totient is φ = 89696160.

The previous prime is 112120187. The next prime is 112120207. The reversal of 112120205 is 502021211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24098281 + 88021924 = 4909^2 + 9382^2 .

It is not a de Polignac number, because 112120205 - 2¹⁶ = 112054669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112120205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112120207) 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, 11212016 + ... + 11212025.

It is an arithmetic number, because the mean of its divisors is an integer number (33636063).

Almost surely, 2^112120205 is an apocalyptic number.

It is an amenable number.

112120205 is a deficient number, since it is larger than the sum of its proper divisors (22424047).

112120205 is an equidigital number, since it uses as much as digits as its factorization.

112120205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22424046.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 112120205 is about 10588.6828737100. The cubic root of 112120205 is about 482.2008382919.

Adding to 112120205 its reverse (502021211), we get a palindrome (614141416).

The spelling of 112120205 in words is "one hundred twelve million, one hundred twenty thousand, two hundred five".