12421422504263 has 2 divisors, whose sum is σ = 12421422504264. Its totient is φ = 12421422504262.

The previous prime is 12421422504241. The next prime is 12421422504397. The reversal of 12421422504263 is 36240522412421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12421422504263 - 2²² = 12421418309959 is a prime.

It is a super-2 number, since 2×12421422504263² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12421422504863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210711252131 + 6210711252132.

It is an arithmetic number, because the mean of its divisors is an integer number (6210711252132).

Almost surely, 2^{12421422504263} is an apocalyptic number.

12421422504263 is a deficient number, since it is larger than the sum of its proper divisors (1).

12421422504263 is an equidigital number, since it uses as much as digits as its factorization.

12421422504263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 184320, while the sum is 38.

Adding to 12421422504263 its reverse (36240522412421), we get a palindrome (48661944916684).

The spelling of 12421422504263 in words is "twelve trillion, four hundred twenty-one billion, four hundred twenty-two million, five hundred four thousand, two hundred sixty-three".