301230221 has 6 divisors (see below), whose sum is σ = 311976522. Its totient is φ = 290842160.

The previous prime is 301230211. The next prime is 301230227. The reversal of 301230221 is 122032103.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 76650025 + 224580196 = 8755^2 + 14986^2 .

It is a de Polignac number, because none of the positive numbers 2^k-301230221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 301230196 and 301230205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (301230227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178250 + ... + 179931.

It is an arithmetic number, because the mean of its divisors is an integer number (51996087).

Almost surely, 2^301230221 is an apocalyptic number.

It is an amenable number.

301230221 is a deficient number, since it is larger than the sum of its proper divisors (10746301).

301230221 is an equidigital number, since it uses as much as digits as its factorization.

301230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358239 (or 358210 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 301230221 is about 17355.9851636258. The cubic root of 301230221 is about 670.3467582040.

Adding to 301230221 its reverse (122032103), we get a palindrome (423262324).

It can be divided in two parts, 3012 and 30221, that added together give a palindrome (33233).

The spelling of 301230221 in words is "three hundred one million, two hundred thirty thousand, two hundred twenty-one".