2020101818201 has 4 divisors (see below), whose sum is σ = 2040102826404. Its totient is φ = 2000100810000.

The previous prime is 2020101818177. The next prime is 2020101818239. The reversal of 2020101818201 is 1028181010202.

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 1942455438400 + 77646379801 = 1393720^2 + 278651^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020101818201 is a prime.

It is a super-2 number, since 2×2020101818201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020101811201) 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, 10000503950 + ... + 10000504151.

It is an arithmetic number, because the mean of its divisors is an integer number (510025706601).

Almost surely, 2^{2020101818201} is an apocalyptic number.

It is an amenable number.

2020101818201 is a deficient number, since it is larger than the sum of its proper divisors (20001008203).

2020101818201 is a wasteful number, since it uses less digits than its factorization.

2020101818201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20001008202.

The product of its (nonzero) digits is 512, while the sum is 26.

Adding to 2020101818201 its reverse (1028181010202), we get a palindrome (3048282828403).

The spelling of 2020101818201 in words is "two trillion, twenty billion, one hundred one million, eight hundred eighteen thousand, two hundred one".