3002002021 has 4 divisors (see below), whose sum is σ = 3132523872. Its totient is φ = 2871480172.

The previous prime is 3002002013. The next prime is 3002002037. The reversal of 3002002021 is 1202002003.

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 3002002021 - 2³ = 3002002013 is a prime.

It is a super-2 number, since 2×3002002021² = 18024032268176168882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3002001989 and 3002002007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3002002621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65260891 + ... + 65260936.

It is an arithmetic number, because the mean of its divisors is an integer number (783130968).

Almost surely, 2^3002002021 is an apocalyptic number.

It is an amenable number.

3002002021 is a deficient number, since it is larger than the sum of its proper divisors (130521851).

3002002021 is a wasteful number, since it uses less digits than its factorization.

3002002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130521850.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 3002002021 is about 54790.5285701826. The cubic root of 3002002021 is about 1442.5703227373.

Adding to 3002002021 its reverse (1202002003), we get a palindrome (4204004024).

The spelling of 3002002021 in words is "three billion, two million, two thousand, twenty-one".