3022021 has 4 divisors (see below), whose sum is σ = 3052044. Its totient is φ = 2992000.

The previous prime is 3021989. The next prime is 3022027. The reversal of 3022021 is 1202203.

3022021 is digitally balanced in base 2, 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 an emirpimes, since its reverse is a distinct semiprime: 1202203 = 101 ⋅11903.

It can be written as a sum of positive squares in 2 ways, for example, as 2512225 + 509796 = 1585^2 + 714^2 .

It is a cyclic number.

It is not a de Polignac number, because 3022021 - 2⁵ = 3021989 is a prime.

It is a super-2 number, since 2×3022021² = 18265221848882, which contains 22 as substring.

It is a Duffinian number.

3022021 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3021989 and 3022007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3022027) 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 3 ways as a sum of consecutive naturals, for example, 14860 + ... + 15061.

It is an arithmetic number, because the mean of its divisors is an integer number (763011).

Almost surely, 2^3022021 is an apocalyptic number.

It is an amenable number.

3022021 is a deficient number, since it is larger than the sum of its proper divisors (30023).

3022021 is a wasteful number, since it uses less digits than its factorization.

3022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30022.

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

The square root of 3022021 is about 1738.3960998576. The cubic root of 3022021 is about 144.5769835199.

Adding to 3022021 its reverse (1202203), we get a palindrome (4224224).

It can be divided in two parts, 302202 and 1, that added together give a palindrome (302203).

The spelling of 3022021 in words is "three million, twenty-two thousand, twenty-one".