2020102021 has 32 divisors (see below), whose sum is σ = 2500485120. Its totient is φ = 1593302400.

The previous prime is 2020102001. The next prime is 2020102033. The reversal of 2020102021 is 1202010202.

It is a cyclic number.

It is not a de Polignac number, because 2020102021 - 2⁷ = 2020101893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2020101989 and 2020102007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020102001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1477080 + ... + 1478446.

It is an arithmetic number, because the mean of its divisors is an integer number (78140160).

Almost surely, 2^2020102021 is an apocalyptic number.

It is an amenable number.

2020102021 is a deficient number, since it is larger than the sum of its proper divisors (480383099).

2020102021 is a wasteful number, since it uses less digits than its factorization.

2020102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2020102021 is about 44945.5450628869. The cubic root of 2020102021 is about 1264.1281459318.

Adding to 2020102021 its reverse (1202010202), we get a palindrome (3222112223).

The spelling of 2020102021 in words is "two billion, twenty million, one hundred two thousand, twenty-one".