12842224821 has 12 divisors (see below), whose sum is σ = 18551397280. Its totient is φ = 8560783080.

The previous prime is 12842224817. The next prime is 12842224853.

12842224821 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12842224821 - 2² = 12842224817 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12842224861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73506 + ... + 176316.

Almost surely, 2^12842224821 is an apocalyptic number.

It is an amenable number.

12842224821 is a deficient number, since it is larger than the sum of its proper divisors (5709172459).

12842224821 is a wasteful number, since it uses less digits than its factorization.

12842224821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116696 (or 116693 counting only the distinct ones).

The product of its digits is 32768, while the sum is 36.

The spelling of 12842224821 in words is "twelve billion, eight hundred forty-two million, two hundred twenty-four thousand, eight hundred twenty-one".