300221 has 2 divisors, whose sum is σ = 300222. Its totient is φ = 300220.

The previous prime is 300193. The next prime is 300229. The reversal of 300221 is 122003.

It is an a-pointer prime, because the next prime (300229) can be obtained adding 300221 to its sum of digits (8).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 280900 + 19321 = 530^2 + 139^2 .

It is a cyclic number.

It is not a de Polignac number, because 300221 - 2¹⁰ = 299197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 300199 and 300208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (300229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150110 + 150111.

It is an arithmetic number, because the mean of its divisors is an integer number (150111).

2³⁰⁰²²¹ is an apocalyptic number.

It is an amenable number.

300221 is a deficient number, since it is larger than the sum of its proper divisors (1).

300221 is an equidigital number, since it uses as much as digits as its factorization.

300221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 300221 is about 547.9242648396. The cubic root of 300221 is about 66.9597292713.

Adding to 300221 its reverse (122003), we get a palindrome (422224).

The spelling of 300221 in words is "three hundred thousand, two hundred twenty-one", and thus it is an iban number.