12021014324321 has 4 divisors (see below), whose sum is σ = 12031090615812. Its totient is φ = 12010938032832.

The previous prime is 12021014324287. The next prime is 12021014324327. The reversal of 12021014324321 is 12342341012021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5103483109921 + 6917531214400 = 2259089^2 + 2630120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12021014324321 is a prime.

It is a super-2 number, since 2×12021014324321² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12021014324327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5038143956 + ... + 5038146341.

It is an arithmetic number, because the mean of its divisors is an integer number (3007772653953).

Almost surely, 2^{12021014324321} is an apocalyptic number.

It is an amenable number.

12021014324321 is a deficient number, since it is larger than the sum of its proper divisors (10076291491).

12021014324321 is a wasteful number, since it uses less digits than its factorization.

12021014324321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10076291490.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 12021014324321 its reverse (12342341012021), we get a palindrome (24363355336342).

The spelling of 12021014324321 in words is "twelve trillion, twenty-one billion, fourteen million, three hundred twenty-four thousand, three hundred twenty-one".