12000021301321 has 8 divisors (see below), whose sum is σ = 12011103382784. Its totient is φ = 11988944276400.

The previous prime is 12000021301283. The next prime is 12000021301421. The reversal of 12000021301321 is 12310312000021.

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 12000021301321 - 2³¹ = 11997873817673 is a prime.

It is a super-2 number, since 2×12000021301321² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000021301295 and 12000021301304.

It is not an unprimeable number, because it can be changed into a prime (12000021301421) 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, 3492646 + ... + 6016528.

It is an arithmetic number, because the mean of its divisors is an integer number (1501387922848).

Almost surely, 2^{12000021301321} is an apocalyptic number.

It is an amenable number.

12000021301321 is a deficient number, since it is larger than the sum of its proper divisors (11082081463).

12000021301321 is a wasteful number, since it uses less digits than its factorization.

12000021301321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528271.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12000021301321 its reverse (12310312000021), we get a palindrome (24310333301342).

The spelling of 12000021301321 in words is "twelve trillion, twenty-one million, three hundred one thousand, three hundred twenty-one".