2221321003 has 8 divisors (see below), whose sum is σ = 2474818560. Its totient is φ = 1976416680.

The previous prime is 2221320971. The next prime is 2221321043. The reversal of 2221321003 is 3001231222.

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

It is a cyclic number.

It is not a de Polignac number, because 2221321003 - 2⁵ = 2221320971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221321043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2147763 + ... + 2148796.

It is an arithmetic number, because the mean of its divisors is an integer number (309352320).

Almost surely, 2^2221321003 is an apocalyptic number.

2221321003 is a deficient number, since it is larger than the sum of its proper divisors (253497557).

2221321003 is a wasteful number, since it uses less digits than its factorization.

2221321003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4296617.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2221321003 is about 47130.8922364090. The cubic root of 2221321003 is about 1304.7794488384.

Adding to 2221321003 its reverse (3001231222), we get a palindrome (5222552225).

The spelling of 2221321003 in words is "two billion, two hundred twenty-one million, three hundred twenty-one thousand, three".