223213212223 has 4 divisors (see below), whose sum is σ = 223483120200. Its totient is φ = 222943304248.

The previous prime is 223213212191. The next prime is 223213212239. The reversal of 223213212223 is 322212312322.

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

It is a cyclic number.

It is not a de Polignac number, because 223213212223 - 2⁵ = 223213212191 is a prime.

It is a super-3 number, since 3×223213212223³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223213212253) 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, 134952748 + ... + 134954401.

It is an arithmetic number, because the mean of its divisors is an integer number (55870780050).

Almost surely, 2^223213212223 is an apocalyptic number.

223213212223 is a deficient number, since it is larger than the sum of its proper divisors (269907977).

223213212223 is an equidigital number, since it uses as much as digits as its factorization.

223213212223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269907976.

The product of its digits is 3456, while the sum is 25.

Adding to 223213212223 its reverse (322212312322), we get a palindrome (545425524545).

The spelling of 223213212223 in words is "two hundred twenty-three billion, two hundred thirteen million, two hundred twelve thousand, two hundred twenty-three".