2020021110001 has 4 divisors (see below), whose sum is σ = 2069289917604. Its totient is φ = 1970752302400.

The previous prime is 2020021109999. The next prime is 2020021110073. The reversal of 2020021110001 is 1000111200202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29314576225 + 1990706533776 = 171215^2 + 1410924^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020021110001 - 2¹ = 2020021109999 is a prime.

It is a super-3 number, since 3×2020021110001³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020021110001.

It is not an unprimeable number, because it can be changed into a prime (2020021110301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24634403740 + ... + 24634403821.

It is an arithmetic number, because the mean of its divisors is an integer number (517322479401).

Almost surely, 2^{2020021110001} is an apocalyptic number.

It is an amenable number.

2020021110001 is a deficient number, since it is larger than the sum of its proper divisors (49268807603).

2020021110001 is an equidigital number, since it uses as much as digits as its factorization.

2020021110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49268807602.

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

Adding to 2020021110001 its reverse (1000111200202), we get a palindrome (3020132310203).

The spelling of 2020021110001 in words is "two trillion, twenty billion, twenty-one million, one hundred ten thousand, one".