20021033012001 has 36 divisors (see below), whose sum is σ = 32773420398672. Its totient is φ = 10838453932656.

The previous prime is 20021033011909. The next prime is 20021033012003. The reversal of 20021033012001 is 10021033012002.

It is not a de Polignac number, because 20021033012001 - 2⁷ = 20021033011873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20021033012003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 188586135 + ... + 188692268.

It is an arithmetic number, because the mean of its divisors is an integer number (910372788852).

Almost surely, 2^{20021033012001} is an apocalyptic number.

20021033012001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20021033012001 is a deficient number, since it is larger than the sum of its proper divisors (12752387386671).

20021033012001 is a wasteful number, since it uses less digits than its factorization.

20021033012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377278458 (or 377278432 counting only the distinct ones).

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

Adding to 20021033012001 its reverse (10021033012002), we get a palindrome (30042066024003).

Subtracting from 20021033012001 its reverse (10021033012002), we obtain a palindrome (9999999999999).

The spelling of 20021033012001 in words is "twenty trillion, twenty-one billion, thirty-three million, twelve thousand, one".