10221403 has 4 divisors (see below), whose sum is σ = 10822680. Its totient is φ = 9620128.

The previous prime is 10221397. The next prime is 10221443. The reversal of 10221403 is 30412201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10221403 - 2⁵ = 10221371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10221443) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 300613 + ... + 300646.

It is an arithmetic number, because the mean of its divisors is an integer number (2705670).

Almost surely, 2^10221403 is an apocalyptic number.

10221403 is a deficient number, since it is larger than the sum of its proper divisors (601277).

10221403 is an equidigital number, since it uses as much as digits as its factorization.

10221403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601276.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 10221403 is about 3197.0928982437. The cubic root of 10221403 is about 217.0218712692.

Adding to 10221403 its reverse (30412201), we get a palindrome (40633604).

The spelling of 10221403 in words is "ten million, two hundred twenty-one thousand, four hundred three".