223030230221 has 4 divisors (see below), whose sum is σ = 223592019612. Its totient is φ = 222468440832.

The previous prime is 223030230193. The next prime is 223030230251. The reversal of 223030230221 is 122032030322.

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

It can be written as a sum of positive squares in 2 ways, for example, as 57893653321 + 165136576900 = 240611^2 + 406370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223030230221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223030230193 and 223030230202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223030230251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280894100 + ... + 280894893.

It is an arithmetic number, because the mean of its divisors is an integer number (55898004903).

Almost surely, 2^223030230221 is an apocalyptic number.

It is an amenable number.

223030230221 is a deficient number, since it is larger than the sum of its proper divisors (561789391).

223030230221 is an equidigital number, since it uses as much as digits as its factorization.

223030230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561789390.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 223030230221 its reverse (122032030322), we get a palindrome (345062260543).

The spelling of 223030230221 in words is "two hundred twenty-three billion, thirty million, two hundred thirty thousand, two hundred twenty-one".