12242400424221 has 16 divisors (see below), whose sum is σ = 17810900013888. Its totient is φ = 7418064902400.

The previous prime is 12242400424211. The next prime is 12242400424223.

12242400424221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12242400424221 - 2³⁹ = 11692644610333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12242400424223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39134806 + ... + 39446391.

It is an arithmetic number, because the mean of its divisors is an integer number (1113181250868).

Almost surely, 2^{12242400424221} is an apocalyptic number.

12242400424221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12242400424221 is a deficient number, since it is larger than the sum of its proper divisors (5568499589667).

12242400424221 is a wasteful number, since it uses less digits than its factorization.

12242400424221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78585932.

The product of its (nonzero) digits is 16384, while the sum is 30.

It can be divided in two parts, 12242400 and 424221, that added together give a palindrome (12666621).

The spelling of 12242400424221 in words is "twelve trillion, two hundred forty-two billion, four hundred million, four hundred twenty-four thousand, two hundred twenty-one".