2001330021021 has 8 divisors (see below), whose sum is σ = 2681849275200. Its totient is φ = 1327515390432.

The previous prime is 2001330021011. The next prime is 2001330021059. The reversal of 2001330021021 is 1201200331002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2001330021021 - 2¹⁴ = 2001330004637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001330021011) 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, 1676155200 + ... + 1676156393.

It is an arithmetic number, because the mean of its divisors is an integer number (335231159400).

Almost surely, 2^{2001330021021} is an apocalyptic number.

It is an amenable number.

2001330021021 is a deficient number, since it is larger than the sum of its proper divisors (680519254179).

2001330021021 is a wasteful number, since it uses less digits than its factorization.

2001330021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352311795.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 2001330021021 its reverse (1201200331002), we get a palindrome (3202530352023).

The spelling of 2001330021021 in words is "two trillion, one billion, three hundred thirty million, twenty-one thousand, twenty-one".