12003221422 has 4 divisors (see below), whose sum is σ = 18004832136. Its totient is φ = 6001610710.

The previous prime is 12003221413. The next prime is 12003221431. The reversal of 12003221422 is 22412230021.

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

It is an interprime number because it is at equal distance from previous prime (12003221413) and next prime (12003221431).

It is a self number, because there is not a number n which added to its sum of digits gives 12003221422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3000805354 + ... + 3000805357.

It is an arithmetic number, because the mean of its divisors is an integer number (4501208034).

Almost surely, 2^12003221422 is an apocalyptic number.

12003221422 is a deficient number, since it is larger than the sum of its proper divisors (6001610714).

12003221422 is an equidigital number, since it uses as much as digits as its factorization.

12003221422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6001610713.

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

Adding to 12003221422 its reverse (22412230021), we get a palindrome (34415451443).

The spelling of 12003221422 in words is "twelve billion, three million, two hundred twenty-one thousand, four hundred twenty-two".