12421404266 has 8 divisors (see below), whose sum is σ = 18645167520. Its totient is φ = 6206348428.

The previous prime is 12421404241. The next prime is 12421404271. The reversal of 12421404266 is 66240412421.

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 2173286 + ... + 2178993.

It is an arithmetic number, because the mean of its divisors is an integer number (2330645940).

Almost surely, 2^12421404266 is an apocalyptic number.

12421404266 is a deficient number, since it is larger than the sum of its proper divisors (6223763254).

12421404266 is a wasteful number, since it uses less digits than its factorization.

12421404266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4353708.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 12421404266 its reverse (66240412421), we get a palindrome (78661816687).

The spelling of 12421404266 in words is "twelve billion, four hundred twenty-one million, four hundred four thousand, two hundred sixty-six".