221064301 has 2 divisors, whose sum is σ = 221064302. Its totient is φ = 221064300.

The previous prime is 221064287. The next prime is 221064377. The reversal of 221064301 is 103460122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188403076 + 32661225 = 13726^2 + 5715^2 .

It is a cyclic number.

It is not a de Polignac number, because 221064301 - 2⁵ = 221064269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221064001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110532150 + 110532151.

It is an arithmetic number, because the mean of its divisors is an integer number (110532151).

Almost surely, 2^221064301 is an apocalyptic number.

It is an amenable number.

221064301 is a deficient number, since it is larger than the sum of its proper divisors (1).

221064301 is an equidigital number, since it uses as much as digits as its factorization.

221064301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 221064301 is about 14868.2312666975. The cubic root of 221064301 is about 604.6529904491.

The spelling of 221064301 in words is "two hundred twenty-one million, sixty-four thousand, three hundred one".