2021020010101 has 8 divisors (see below), whose sum is σ = 2023516466208. Its totient is φ = 2018524410000.

The previous prime is 2021020010077. The next prime is 2021020010111. The reversal of 2021020010101 is 1010100201202.

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

It is a cyclic number.

It is not a de Polignac number, because 2021020010101 - 2¹¹ = 2021020008053 is a prime.

It is a super-2 number, since 2×2021020010101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021020010111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4576951 + ... + 4999051.

It is an arithmetic number, because the mean of its divisors is an integer number (252939558276).

Almost surely, 2^{2021020010101} is an apocalyptic number.

It is an amenable number.

2021020010101 is a deficient number, since it is larger than the sum of its proper divisors (2496456107).

2021020010101 is an equidigital number, since it uses as much as digits as its factorization.

2021020010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428003.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2021020010101 its reverse (1010100201202), we get a palindrome (3031120211303).

The spelling of 2021020010101 in words is "two trillion, twenty-one billion, twenty million, ten thousand, one hundred one".