2030220021 has 4 divisors (see below), whose sum is σ = 2706960032. Its totient is φ = 1353480012.

The previous prime is 2030220011. The next prime is 2030220047. The reversal of 2030220021 is 1200220302.

2030220021 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2030220021 - 2⁶ = 2030219957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2030219979 and 2030220006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2030220011) 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, 338370001 + ... + 338370006.

It is an arithmetic number, because the mean of its divisors is an integer number (676740008).

Almost surely, 2^2030220021 is an apocalyptic number.

It is an amenable number.

2030220021 is a deficient number, since it is larger than the sum of its proper divisors (676740011).

2030220021 is an equidigital number, since it uses as much as digits as its factorization.

2030220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676740010.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2030220021 is about 45057.9629033537. The cubic root of 2030220021 is about 1266.2351605517.

Adding to 2030220021 its reverse (1200220302), we get a palindrome (3230440323).

The spelling of 2030220021 in words is "two billion, thirty million, two hundred twenty thousand, twenty-one".