2020121110001 has 2 divisors, whose sum is σ = 2020121110002. Its totient is φ = 2020121110000.

The previous prime is 2020121109967. The next prime is 2020121110039. The reversal of 2020121110001 is 1000111210202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1960378018225 + 59743091776 = 1400135^2 + 244424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020121110001 is a prime.

It is not a weakly prime, because it can be changed into another prime (2020121116001) 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 as a sum of consecutive naturals, namely, 1010060555000 + 1010060555001.

It is an arithmetic number, because the mean of its divisors is an integer number (1010060555001).

Almost surely, 2^{2020121110001} is an apocalyptic number.

It is an amenable number.

2020121110001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020121110001 is an equidigital number, since it uses as much as digits as its factorization.

2020121110001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2020121110001 its reverse (1000111210202), we get a palindrome (3020232320203).

The spelling of 2020121110001 in words is "two trillion, twenty billion, one hundred twenty-one million, one hundred ten thousand, one".