12001460021 has 16 divisors (see below), whose sum is σ = 12519360000. Its totient is φ = 11490701376.

The previous prime is 12001459999. The next prime is 12001460027. The reversal of 12001460021 is 12006410021.

It is a cyclic number.

It is not a de Polignac number, because 12001460021 - 2¹⁸ = 12001197877 is a prime.

It is a super-2 number, since 2×12001460021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001460027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5799575 + ... + 5801643.

It is an arithmetic number, because the mean of its divisors is an integer number (782460000).

Almost surely, 2^12001460021 is an apocalyptic number.

It is an amenable number.

12001460021 is a deficient number, since it is larger than the sum of its proper divisors (517899979).

12001460021 is a wasteful number, since it uses less digits than its factorization.

12001460021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12001460021 its reverse (12006410021), we get a palindrome (24007870042).

The spelling of 12001460021 in words is "twelve billion, one million, four hundred sixty thousand, twenty-one".