2020100220021 has 8 divisors (see below), whose sum is σ = 2900656726240. Its totient is φ = 1243138596912.

The previous prime is 2020100220011. The next prime is 2020100220029. The reversal of 2020100220021 is 1200220010202.

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

It is not a de Polignac number, because 2020100220021 - 2³⁰ = 2019026478197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2020100219979 and 2020100220006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020100220029) 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 7 ways as a sum of consecutive naturals, for example, 25898720731 + ... + 25898720808.

It is an arithmetic number, because the mean of its divisors is an integer number (362582090780).

Almost surely, 2^{2020100220021} is an apocalyptic number.

It is an amenable number.

2020100220021 is a deficient number, since it is larger than the sum of its proper divisors (880556506219).

2020100220021 is a wasteful number, since it uses less digits than its factorization.

2020100220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51797441555.

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

Adding to 2020100220021 its reverse (1200220010202), we get a palindrome (3220320230223).

The spelling of 2020100220021 in words is "two trillion, twenty billion, one hundred million, two hundred twenty thousand, twenty-one".