10304312221 has 32 divisors (see below), whose sum is σ = 12644605440. Its totient is φ = 8196249600.

The previous prime is 10304312189. The next prime is 10304312243. The reversal of 10304312221 is 12221340301.

It is a happy number.

It is not a de Polignac number, because 10304312221 - 2⁵ = 10304312189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10304312281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4457656 + ... + 4459966.

It is an arithmetic number, because the mean of its divisors is an integer number (395143920).

Almost surely, 2^10304312221 is an apocalyptic number.

It is an amenable number.

10304312221 is a deficient number, since it is larger than the sum of its proper divisors (2340293219).

10304312221 is a wasteful number, since it uses less digits than its factorization.

10304312221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845.

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

Adding to 10304312221 its reverse (12221340301), we get a palindrome (22525652522).

The spelling of 10304312221 in words is "ten billion, three hundred four million, three hundred twelve thousand, two hundred twenty-one".