2020001110021 has 4 divisors (see below), whose sum is σ = 2020314343500. Its totient is φ = 2019687876544.

The previous prime is 2020001110007. The next prime is 2020001110031. The reversal of 2020001110021 is 1200111000202.

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 1955606464900 + 64394645121 = 1398430^2 + 253761^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020001110021 - 2¹³ = 2020001101829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020001110031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156607066 + ... + 156619963.

It is an arithmetic number, because the mean of its divisors is an integer number (505078585875).

Almost surely, 2^{2020001110021} is an apocalyptic number.

It is an amenable number.

2020001110021 is a deficient number, since it is larger than the sum of its proper divisors (313233479).

2020001110021 is an equidigital number, since it uses as much as digits as its factorization.

2020001110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313233478.

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

Adding to 2020001110021 its reverse (1200111000202), we get a palindrome (3220112110223).

The spelling of 2020001110021 in words is "two trillion, twenty billion, one million, one hundred ten thousand, twenty-one".