223217227 has 4 divisors (see below), whose sum is σ = 223303896. Its totient is φ = 223130560.

The previous prime is 223217221. The next prime is 223217249. The reversal of 223217227 is 722712322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722712322 = 2 ⋅361356161.

It is a cyclic number.

It is not a de Polignac number, because 223217227 - 2¹⁵ = 223184459 is a prime.

It is a super-3 number, since 3×223217227³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223217195 and 223217204.

It is not an unprimeable number, because it can be changed into a prime (223217221) 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, 39349 + ... + 44662.

It is an arithmetic number, because the mean of its divisors is an integer number (55825974).

Almost surely, 2^223217227 is an apocalyptic number.

223217227 is a deficient number, since it is larger than the sum of its proper divisors (86669).

223217227 is an equidigital number, since it uses as much as digits as its factorization.

223217227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86668.

The product of its digits is 4704, while the sum is 28.

The square root of 223217227 is about 14940.4560506030. The cubic root of 223217227 is about 606.6095402005.

Adding to 223217227 its reverse (722712322), we get a palindrome (945929549).

The spelling of 223217227 in words is "two hundred twenty-three million, two hundred seventeen thousand, two hundred twenty-seven".