12441421120221 has 16 divisors (see below), whose sum is σ = 18431831109120. Its totient is φ = 8294237494560.

The previous prime is 12441421120207. The next prime is 12441421120243. The reversal of 12441421120221 is 12202112414421.

12441421120221 is a `hidden beast` number, since 1 + 2 + 4 + 4 + 1 + 421 + 12 + 0 + 221 = 666.

It is not a de Polignac number, because 12441421120221 - 2³³ = 12432831185629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12441421120321) 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, 4577481 + ... + 6770241.

It is an arithmetic number, because the mean of its divisors is an integer number (1151989444320).

Almost surely, 2^{12441421120221} is an apocalyptic number.

It is an amenable number.

12441421120221 is a deficient number, since it is larger than the sum of its proper divisors (5990409988899).

12441421120221 is a wasteful number, since it uses less digits than its factorization.

12441421120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402913 (or 2402907 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

Adding to 12441421120221 its reverse (12202112414421), we get a palindrome (24643533534642).

The spelling of 12441421120221 in words is "twelve trillion, four hundred forty-one billion, four hundred twenty-one million, one hundred twenty thousand, two hundred twenty-one".