2021020000101 has 24 divisors (see below), whose sum is σ = 3077578969920. Its totient is φ = 1275480112896.

The previous prime is 2021020000093. The next prime is 2021020000133. The reversal of 2021020000101 is 1010000201202.

It is not a de Polignac number, because 2021020000101 - 2³ = 2021020000093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021020000141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50306631 + ... + 50346788.

It is an arithmetic number, because the mean of its divisors is an integer number (128232457080).

Almost surely, 2^{2021020000101} is an apocalyptic number.

It is an amenable number.

2021020000101 is a deficient number, since it is larger than the sum of its proper divisors (1056558969819).

2021020000101 is a wasteful number, since it uses less digits than its factorization.

2021020000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100653545 (or 100653542 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2021020000101 its reverse (1010000201202), we get a palindrome (3031020201303).

The spelling of 2021020000101 in words is "two trillion, twenty-one billion, twenty million, one hundred one", and thus it is an aban number.