2020101 has 16 divisors (see below), whose sum is σ = 2790720. Its totient is φ = 1299200.

The previous prime is 2020091. The next prime is 2020147. The reversal of 2020101 is 1010202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2020101 - 2⁶ = 2020037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17821 + ... + 17933.

It is an arithmetic number, because the mean of its divisors is an integer number (174420).

2^2020101 is an apocalyptic number.

It is an amenable number.

2020101 is a deficient number, since it is larger than the sum of its proper divisors (770619).

2020101 is a wasteful number, since it uses less digits than its factorization.

2020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 2020101 is about 1421.3025715871. The cubic root of 2020101 is about 126.4127932960.

Adding to 2020101 its reverse (1010202), we get a palindrome (3030303).

The spelling of 2020101 in words is "two million, twenty thousand, one hundred one".