223212223 has 8 divisors (see below), whose sum is σ = 240510816. Its totient is φ = 205932000.

The previous prime is 223212221. The next prime is 223212233. The reversal of 223212223 is 322212322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223212223 - 2¹ = 223212221 is a prime.

It is a super-3 number, since 3×223212223³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223212223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223212221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30798 + ... + 37348.

It is an arithmetic number, because the mean of its divisors is an integer number (30063852).

Almost surely, 2^223212223 is an apocalyptic number.

223212223 is a deficient number, since it is larger than the sum of its proper divisors (17298593).

223212223 is a wasteful number, since it uses less digits than its factorization.

223212223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9185.

The product of its digits is 576, while the sum is 19.

The square root of 223212223 is about 14940.2885848969. The cubic root of 223212223 is about 606.6050072516.

Adding to 223212223 its reverse (322212322), we get a palindrome (545424545).

Subtracting 223212223 from its reverse (322212322), we obtain a palindrome (99000099).

The spelling of 223212223 in words is "two hundred twenty-three million, two hundred twelve thousand, two hundred twenty-three".