300020221 has 2 divisors, whose sum is σ = 300020222. Its totient is φ = 300020220.

The previous prime is 300020207. The next prime is 300020269. The reversal of 300020221 is 122020003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155900196 + 144120025 = 12486^2 + 12005^2 .

It is a cyclic number.

It is not a de Polignac number, because 300020221 - 2¹³ = 300012029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 300020198 and 300020207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (300029221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150010110 + 150010111.

It is an arithmetic number, because the mean of its divisors is an integer number (150010111).

Almost surely, 2^300020221 is an apocalyptic number.

It is an amenable number.

300020221 is a deficient number, since it is larger than the sum of its proper divisors (1).

300020221 is an equidigital number, since it uses as much as digits as its factorization.

300020221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 300020221 is about 17321.0917958424. The cubic root of 300020221 is about 669.4479904150.

Adding to 300020221 its reverse (122020003), we get a palindrome (422040224).

The spelling of 300020221 in words is "three hundred million, twenty thousand, two hundred twenty-one".