12198484621 has 2 divisors, whose sum is σ = 12198484622. Its totient is φ = 12198484620.

The previous prime is 12198484609. The next prime is 12198484681. The reversal of 12198484621 is 12648489121.

12198484621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12081087396 + 117397225 = 109914^2 + 10835^2 .

It is an emirp because it is prime and its reverse (12648489121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12198484621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12198484681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6099242310 + 6099242311.

It is an arithmetic number, because the mean of its divisors is an integer number (6099242311).

Almost surely, 2^12198484621 is an apocalyptic number.

It is an amenable number.

12198484621 is a deficient number, since it is larger than the sum of its proper divisors (1).

12198484621 is an equidigital number, since it uses as much as digits as its factorization.

12198484621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 46.

The spelling of 12198484621 in words is "twelve billion, one hundred ninety-eight million, four hundred eighty-four thousand, six hundred twenty-one".