12001302001021 has 8 divisors (see below), whose sum is σ = 12269334139200. Its totient is φ = 11735884810848.

The previous prime is 12001302001001. The next prime is 12001302001043. The reversal of 12001302001021 is 12010020310021.

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 12001302001021 - 2⁴³ = 3205208978813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001302000992 and 12001302001010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001302001001) 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, 653727721 + ... + 653746078.

It is an arithmetic number, because the mean of its divisors is an integer number (1533666767400).

Almost surely, 2^{12001302001021} is an apocalyptic number.

It is an amenable number.

12001302001021 is a deficient number, since it is larger than the sum of its proper divisors (268032138179).

12001302001021 is a wasteful number, since it uses less digits than its factorization.

12001302001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307474003.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12001302001021 its reverse (12010020310021), we get a palindrome (24011322311042).

The spelling of 12001302001021 in words is "twelve trillion, one billion, three hundred two million, one thousand, twenty-one".