112227217 has 4 divisors (see below), whose sum is σ = 118828836. Its totient is φ = 105625600.

The previous prime is 112227197. The next prime is 112227221. The reversal of 112227217 is 712722211.

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 75272976 + 36954241 = 8676^2 + 6079^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112227217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112227191 and 112227200.

It is not an unprimeable number, because it can be changed into a prime (112227257) 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 3 ways as a sum of consecutive naturals, for example, 3300784 + ... + 3300817.

It is an arithmetic number, because the mean of its divisors is an integer number (29707209).

Almost surely, 2^112227217 is an apocalyptic number.

112227217 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

112227217 is a deficient number, since it is larger than the sum of its proper divisors (6601619).

112227217 is an equidigital number, since it uses as much as digits as its factorization.

112227217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6601618.

The product of its digits is 784, while the sum is 25.

The square root of 112227217 is about 10593.7347993991. The cubic root of 112227217 is about 482.3542000880.

Adding to 112227217 its reverse (712722211), we get a palindrome (824949428).

The spelling of 112227217 in words is "one hundred twelve million, two hundred twenty-seven thousand, two hundred seventeen".