12421310422 has 4 divisors (see below), whose sum is σ = 18631965636. Its totient is φ = 6210655210.

The previous prime is 12421310411. The next prime is 12421310453. The reversal of 12421310422 is 22401312421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22401312421 = 29 ⋅772459049.

It is a junction number, because it is equal to n+sod(n) for n = 12421310393 and 12421310402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3105327604 + ... + 3105327607.

It is an arithmetic number, because the mean of its divisors is an integer number (4657991409).

Almost surely, 2^12421310422 is an apocalyptic number.

12421310422 is a deficient number, since it is larger than the sum of its proper divisors (6210655214).

12421310422 is an equidigital number, since it uses as much as digits as its factorization.

12421310422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6210655213.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12421310422 its reverse (22401312421), we get a palindrome (34822622843).

The spelling of 12421310422 in words is "twelve billion, four hundred twenty-one million, three hundred ten thousand, four hundred twenty-two".