2021020004101 has 64 divisors (see below), whose sum is σ = 2609501806080. Its totient is φ = 1525040455680.

The previous prime is 2021020003997. The next prime is 2021020004117. The reversal of 2021020004101 is 1014000201202.

It is a happy number.

It is not a de Polignac number, because 2021020004101 - 2⁷ = 2021020003973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021020004191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29717106 + ... + 29785036.

It is an arithmetic number, because the mean of its divisors is an integer number (40773465720).

Almost surely, 2^{2021020004101} is an apocalyptic number.

It is an amenable number.

2021020004101 is a deficient number, since it is larger than the sum of its proper divisors (588481801979).

2021020004101 is a wasteful number, since it uses less digits than its factorization.

2021020004101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68254.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2021020004101 its reverse (1014000201202), we get a palindrome (3035020205303).

The spelling of 2021020004101 in words is "two trillion, twenty-one billion, twenty million, four thousand, one hundred one".