12424414340021 has 8 divisors (see below), whose sum is σ = 12968113147584. Its totient is φ = 11881007772480.

The previous prime is 12424414340011. The next prime is 12424414340057. The reversal of 12424414340021 is 12004341442421.

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

It is a cyclic number.

It is not a de Polignac number, because 12424414340021 - 2²⁶ = 12424347231157 is a prime.

It is a super-2 number, since 2×12424414340021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12424414340021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12424414340011) 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 in 7 ways as a sum of consecutive naturals, for example, 72973115 + ... + 73143176.

It is an arithmetic number, because the mean of its divisors is an integer number (1621014143448).

Almost surely, 2^{12424414340021} is an apocalyptic number.

It is an amenable number.

12424414340021 is a deficient number, since it is larger than the sum of its proper divisors (543698807563).

12424414340021 is a wasteful number, since it uses less digits than its factorization.

12424414340021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146120011.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 12424414340021 its reverse (12004341442421), we get a palindrome (24428755782442).

The spelling of 12424414340021 in words is "twelve trillion, four hundred twenty-four billion, four hundred fourteen million, three hundred forty thousand, twenty-one".