433230221 has 2 divisors, whose sum is σ = 433230222. Its totient is φ = 433230220.

The previous prime is 433230209. The next prime is 433230247. The reversal of 433230221 is 122032334.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 407474596 + 25755625 = 20186^2 + 5075^2 .

It is a cyclic number.

It is not a de Polignac number, because 433230221 - 2⁶ = 433230157 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 433230193 and 433230202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (433230251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216615110 + 216615111.

It is an arithmetic number, because the mean of its divisors is an integer number (216615111).

Almost surely, 2^433230221 is an apocalyptic number.

It is an amenable number.

433230221 is a deficient number, since it is larger than the sum of its proper divisors (1).

433230221 is an equidigital number, since it uses as much as digits as its factorization.

433230221 is an evil number, because the sum of its binary digits is even.

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

The square root of 433230221 is about 20814.1831691758. The cubic root of 433230221 is about 756.6695338007.

Adding to 433230221 its reverse (122032334), we get a palindrome (555262555).

The spelling of 433230221 in words is "four hundred thirty-three million, two hundred thirty thousand, two hundred twenty-one".