12001420223421 has 8 divisors (see below), whose sum is σ = 16002349886880. Its totient is φ = 8000718687792.

The previous prime is 12001420223393. The next prime is 12001420223453. The reversal of 12001420223421 is 12432202410021.

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

It is not a de Polignac number, because 12001420223421 - 2⁶ = 12001420223357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12001420223391 and 12001420223400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001422223421) 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, 56909166 + ... + 57119663.

It is an arithmetic number, because the mean of its divisors is an integer number (2000293735860).

Almost surely, 2^{12001420223421} is an apocalyptic number.

It is an amenable number.

12001420223421 is a deficient number, since it is larger than the sum of its proper divisors (4000929663459).

12001420223421 is a wasteful number, since it uses less digits than its factorization.

12001420223421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114063915.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 12001420223421 its reverse (12432202410021), we get a palindrome (24433622633442).

The spelling of 12001420223421 in words is "twelve trillion, one billion, four hundred twenty million, two hundred twenty-three thousand, four hundred twenty-one".