12424433442421 has 64 divisors (see below), whose sum is σ = 16957890625536. Its totient is φ = 8788772678400.

The previous prime is 12424433442413. The next prime is 12424433442427.

12424433442421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12424433442421 - 2³ = 12424433442413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12424433442427) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 536287180 + ... + 536310346.

It is an arithmetic number, because the mean of its divisors is an integer number (264967041024).

Almost surely, 2^{12424433442421} is an apocalyptic number.

12424433442421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12424433442421 is a deficient number, since it is larger than the sum of its proper divisors (4533457183115).

12424433442421 is a wasteful number, since it uses less digits than its factorization.

12424433442421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32042.

The product of its digits is 589824, while the sum is 40.

It can be divided in two parts, 1242443 and 3442421, that added together give a palindrome (4684864).

The spelling of 12424433442421 in words is "twelve trillion, four hundred twenty-four billion, four hundred thirty-three million, four hundred forty-two thousand, four hundred twenty-one".