2221444003 has 2 divisors, whose sum is σ = 2221444004. Its totient is φ = 2221444002.

The previous prime is 2221443989. The next prime is 2221444021. The reversal of 2221444003 is 3004441222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221444003 - 2⁵ = 2221443971 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221444103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110722001 + 1110722002.

It is an arithmetic number, because the mean of its divisors is an integer number (1110722002).

Almost surely, 2^2221444003 is an apocalyptic number.

2221444003 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221444003 is an equidigital number, since it uses as much as digits as its factorization.

2221444003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2221444003 is about 47132.1970949796. The cubic root of 2221444003 is about 1304.8035313416.

Adding to 2221444003 its reverse (3004441222), we get a palindrome (5225885225).

It can be divided in two parts, 2221 and 444003, that added together give a square (446224 = 668²).

The spelling of 2221444003 in words is "two billion, two hundred twenty-one million, four hundred forty-four thousand, three".