20201020000221 has 16 divisors (see below), whose sum is σ = 28352852211200. Its totient is φ = 12758294400048.

The previous prime is 20201020000219. The next prime is 20201020000267. The reversal of 20201020000221 is 12200002010202.

It is not a de Polignac number, because 20201020000221 - 2¹ = 20201020000219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20201020000197 and 20201020000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201021000221) 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, 373201 + ... + 6367206.

It is an arithmetic number, because the mean of its divisors is an integer number (1772053263200).

Almost surely, 2^{20201020000221} is an apocalyptic number.

It is an amenable number.

20201020000221 is a deficient number, since it is larger than the sum of its proper divisors (8151832210979).

20201020000221 is a wasteful number, since it uses less digits than its factorization.

20201020000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6793008.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20201020000221 its reverse (12200002010202), we get a palindrome (32401022010423).

The spelling of 20201020000221 in words is "twenty trillion, two hundred one billion, twenty million, two hundred twenty-one", and thus it is an aban number.