2221000003 has 32 divisors (see below), whose sum is σ = 2582323200. Its totient is φ = 1895975424.

The previous prime is 2220999997. The next prime is 2221000043. The reversal of 2221000003 is 3000001222.

It is a cyclic number.

It is not a de Polignac number, because 2221000003 - 2⁹ = 2220999491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221000043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1188676 + ... + 1190542.

It is an arithmetic number, because the mean of its divisors is an integer number (80697600).

Almost surely, 2^2221000003 is an apocalyptic number.

2221000003 is a deficient number, since it is larger than the sum of its proper divisors (361323197).

2221000003 is a wasteful number, since it uses less digits than its factorization.

2221000003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 2221000003 is about 47127.4867036213. The cubic root of 2221000003 is about 1304.7165951912.

Adding to 2221000003 its reverse (3000001222), we get a palindrome (5221001225).

The spelling of 2221000003 in words is "two billion, two hundred twenty-one million, three", and thus it is an aban number.