223216226 has 4 divisors (see below), whose sum is σ = 334824342. Its totient is φ = 111608112.

The previous prime is 223216187. The next prime is 223216229. The reversal of 223216226 is 622612322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 622612322 = 2 ⋅311306161.

It can be written as a sum of positive squares in only one way, i.e., 216060601 + 7155625 = 14699^2 + 2675^2 .

It is a super-3 number, since 3×223216226³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 223216195 and 223216204.

It is not an unprimeable number, because it can be changed into a prime (223216229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55804055 + ... + 55804058.

Almost surely, 2^223216226 is an apocalyptic number.

223216226 is a deficient number, since it is larger than the sum of its proper divisors (111608116).

223216226 is a wasteful number, since it uses less digits than its factorization.

223216226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111608115.

The product of its digits is 3456, while the sum is 26.

The square root of 223216226 is about 14940.4225509187. The cubic root of 223216226 is about 606.6086334349.

Adding to 223216226 its reverse (622612322), we get a palindrome (845828548).

The spelling of 223216226 in words is "two hundred twenty-three million, two hundred sixteen thousand, two hundred twenty-six".