12421715055 has 8 divisors (see below), whose sum is σ = 19874744112. Its totient is φ = 6624914688.

The previous prime is 12421715039. The next prime is 12421715069. The reversal of 12421715055 is 55051712421.

12421715055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12421715055 - 2⁴ = 12421715039 is a prime.

It is a super-2 number, since 2×12421715055² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 414057154 + ... + 414057183.

It is an arithmetic number, because the mean of its divisors is an integer number (2484343014).

Almost surely, 2^12421715055 is an apocalyptic number.

12421715055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12421715055 is a deficient number, since it is larger than the sum of its proper divisors (7453029057).

12421715055 is an equidigital number, since it uses as much as digits as its factorization.

12421715055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828114345.

The product of its (nonzero) digits is 14000, while the sum is 33.

The spelling of 12421715055 in words is "twelve billion, four hundred twenty-one million, seven hundred fifteen thousand, fifty-five".