12221440003 has 4 divisors (see below), whose sum is σ = 12223990408. Its totient is φ = 12218889600.

The previous prime is 12221440001. The next prime is 12221440079. The reversal of 12221440003 is 30004412221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30004412221 = 7 ⋅4286344603.

It is a cyclic number.

It is not a de Polignac number, because 12221440003 - 2¹ = 12221440001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221440001) 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 in 3 ways as a sum of consecutive naturals, for example, 1268001 + ... + 1277602.

It is an arithmetic number, because the mean of its divisors is an integer number (3055997602).

Almost surely, 2^12221440003 is an apocalyptic number.

12221440003 is a deficient number, since it is larger than the sum of its proper divisors (2550405).

12221440003 is an equidigital number, since it uses as much as digits as its factorization.

12221440003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550404.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12221440003 its reverse (30004412221), we get a palindrome (42225852224).

The spelling of 12221440003 in words is "twelve billion, two hundred twenty-one million, four hundred forty thousand, three".