10243221 has 8 divisors (see below), whose sum is σ = 13701984. Its totient is φ = 6806640.

The previous prime is 10243213. The next prime is 10243229. The reversal of 10243221 is 12234201.

It is an interprime number because it is at equal distance from previous prime (10243213) and next prime (10243229).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10243221 - 2³ = 10243213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10243221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10243229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4435 + ... + 6336.

It is an arithmetic number, because the mean of its divisors is an integer number (1712748).

Almost surely, 2^10243221 is an apocalyptic number.

It is an amenable number.

10243221 is a deficient number, since it is larger than the sum of its proper divisors (3458763).

10243221 is a wasteful number, since it uses less digits than its factorization.

10243221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11091.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 10243221 is about 3200.5032416793. The cubic root of 10243221 is about 217.1761755322.

Adding to 10243221 its reverse (12234201), we get a palindrome (22477422).

The spelling of 10243221 in words is "ten million, two hundred forty-three thousand, two hundred twenty-one".