10221306 has 16 divisors (see below), whose sum is σ = 20481984. Its totient is φ = 3400544.

The previous prime is 10221293. The next prime is 10221347. The reversal of 10221306 is 60312201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2566 + ... + 5198.

It is an arithmetic number, because the mean of its divisors is an integer number (1280124).

Almost surely, 2^10221306 is an apocalyptic number.

10221306 is an abundant number, since it is smaller than the sum of its proper divisors (10260678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10221306 is a wasteful number, since it uses less digits than its factorization.

10221306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3285.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 10221306 is about 3197.0777281762. The cubic root of 10221306 is about 217.0211847624.

Adding to 10221306 its reverse (60312201), we get a palindrome (70533507).

The spelling of 10221306 in words is "ten million, two hundred twenty-one thousand, three hundred six".