12004143422221 has 8 divisors (see below), whose sum is σ = 12546298681920. Its totient is φ = 11463674494272.

The previous prime is 12004143422197. The next prime is 12004143422263. The reversal of 12004143422221 is 12222434140021.

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 12004143422221 - 2²⁹ = 12003606551309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12004143422221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12004143420221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421568380 + ... + 421596853.

It is an arithmetic number, because the mean of its divisors is an integer number (1568287335240).

Almost surely, 2^{12004143422221} is an apocalyptic number.

It is an amenable number.

12004143422221 is a deficient number, since it is larger than the sum of its proper divisors (542155259699).

12004143422221 is an equidigital number, since it uses as much as digits as its factorization.

12004143422221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843165875.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 12004143422221 its reverse (12222434140021), we get a palindrome (24226577562242).

The spelling of 12004143422221 in words is "twelve trillion, four billion, one hundred forty-three million, four hundred twenty-two thousand, two hundred twenty-one".