2020121100001 has 4 divisors (see below), whose sum is σ = 2024484212992. Its totient is φ = 2015757987012.

The previous prime is 2020121099957. The next prime is 2020121100017. The reversal of 2020121100001 is 1000011210202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2020121100001 - 2¹⁵ = 2020121067233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020121100901) 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 3 ways as a sum of consecutive naturals, for example, 2181555801 + ... + 2181556726.

It is an arithmetic number, because the mean of its divisors is an integer number (506121053248).

Almost surely, 2^{2020121100001} is an apocalyptic number.

It is an amenable number.

2020121100001 is a deficient number, since it is larger than the sum of its proper divisors (4363112991).

2020121100001 is an equidigital number, since it uses as much as digits as its factorization.

2020121100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4363112990.

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

Adding to 2020121100001 its reverse (1000011210202), we get a palindrome (3020132310203).

The spelling of 2020121100001 in words is "two trillion, twenty billion, one hundred twenty-one million, one hundred thousand, one".