223230222221 has 4 divisors (see below), whose sum is σ = 223527466944. Its totient is φ = 222932977500.

The previous prime is 223230222217. The next prime is 223230222253. The reversal of 223230222221 is 122222032322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 223230222221 - 2² = 223230222217 is a prime.

It is a super-3 number, since 3×223230222221³ (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 (223230222211) 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, 148621235 + ... + 148622736.

It is an arithmetic number, because the mean of its divisors is an integer number (55881866736).

Almost surely, 2^223230222221 is an apocalyptic number.

It is an amenable number.

223230222221 is a deficient number, since it is larger than the sum of its proper divisors (297244723).

223230222221 is an equidigital number, since it uses as much as digits as its factorization.

223230222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297244722.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 223230222221 its reverse (122222032322), we get a palindrome (345452254543).

The spelling of 223230222221 in words is "two hundred twenty-three billion, two hundred thirty million, two hundred twenty-two thousand, two hundred twenty-one".