12000010021001 has 4 divisors (see below), whose sum is σ = 12000017104452. Its totient is φ = 12000002937552.

The previous prime is 12000010020983. The next prime is 12000010021007. The reversal of 12000010021001 is 10012001000021.

12000010021001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3727598628601 + 8272411392400 = 1930699^2 + 2876180^2 .

It is a cyclic number.

It is not a de Polignac number, because 12000010021001 - 2¹⁴ = 12000010004617 is a prime.

It is a super-2 number, since 2×12000010021001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12000010021001.

It is not an unprimeable number, because it can be changed into a prime (12000010021007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664715 + ... + 4943871.

It is an arithmetic number, because the mean of its divisors is an integer number (3000004276113).

Almost surely, 2^{12000010021001} is an apocalyptic number.

It is an amenable number.

12000010021001 is a deficient number, since it is larger than the sum of its proper divisors (7083451).

12000010021001 is an equidigital number, since it uses as much as digits as its factorization.

12000010021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7083450.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12000010021001 its reverse (10012001000021), we get a palindrome (22012011021022).

The spelling of 12000010021001 in words is "twelve trillion, ten million, twenty-one thousand, one".