12421010417 has 2 divisors, whose sum is σ = 12421010418. Its totient is φ = 12421010416.

The previous prime is 12421010389. The next prime is 12421010419. The reversal of 12421010417 is 71401012421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12386799616 + 34210801 = 111296^2 + 5849^2 .

It is a cyclic number.

It is not a de Polignac number, because 12421010417 - 2³⁰ = 11347268593 is a prime.

Together with 12421010419, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12421010392 and 12421010401.

It is not a weakly prime, because it can be changed into another prime (12421010419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210505208 + 6210505209.

It is an arithmetic number, because the mean of its divisors is an integer number (6210505209).

Almost surely, 2^12421010417 is an apocalyptic number.

It is an amenable number.

12421010417 is a deficient number, since it is larger than the sum of its proper divisors (1).

12421010417 is an equidigital number, since it uses as much as digits as its factorization.

12421010417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 12421010417 its reverse (71401012421), we get a palindrome (83822022838).

The spelling of 12421010417 in words is "twelve billion, four hundred twenty-one million, ten thousand, four hundred seventeen".