223230223022221 has 2 divisors, whose sum is σ = 223230223022222. Its totient is φ = 223230223022220.

The previous prime is 223230223022173. The next prime is 223230223022237. The reversal of 223230223022221 is 122220322032322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189999483040900 + 33230739981321 = 13784030^2 + 5764611^2 .

It is a cyclic number.

It is not a de Polignac number, because 223230223022221 - 2³⁹ = 222680467208333 is a prime.

It is a super-3 number, since 3×223230223022221³ (a number of 44 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 223230223022221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223230223022281) 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 as a sum of consecutive naturals, namely, 111615111511110 + 111615111511111.

It is an arithmetic number, because the mean of its divisors is an integer number (111615111511111).

Almost surely, 2^{223230223022221} is an apocalyptic number.

It is an amenable number.

223230223022221 is a deficient number, since it is larger than the sum of its proper divisors (1).

223230223022221 is an equidigital number, since it uses as much as digits as its factorization.

223230223022221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 223230223022221 its reverse (122220322032322), we get a palindrome (345450545054543).

The spelling of 223230223022221 in words is "two hundred twenty-three trillion, two hundred thirty billion, two hundred twenty-three million, twenty-two thousand, two hundred twenty-one".