2020121102011 has 4 divisors (see below), whose sum is σ = 2020152928024. Its totient is φ = 2020089276000.

The previous prime is 2020121101979. The next prime is 2020121102039. The reversal of 2020121102011 is 1102011210202.

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

It is a cyclic number.

It is not a de Polignac number, because 2020121102011 - 2⁵ = 2020121101979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020121101982 and 2020121102000.

It is not an unprimeable number, because it can be changed into a prime (2020121102711) 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, 15817605 + ... + 15944806.

It is an arithmetic number, because the mean of its divisors is an integer number (505038232006).

Almost surely, 2^{2020121102011} is an apocalyptic number.

2020121102011 is a deficient number, since it is larger than the sum of its proper divisors (31826013).

2020121102011 is an equidigital number, since it uses as much as digits as its factorization.

2020121102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31826012.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2020121102011 its reverse (1102011210202), we get a palindrome (3122132312213).

The spelling of 2020121102011 in words is "two trillion, twenty billion, one hundred twenty-one million, one hundred two thousand, eleven".