3043221021 has 6 divisors (see below), whose sum is σ = 4395763710. Its totient is φ = 2028814008.

The previous prime is 3043220977. The next prime is 3043221073. The reversal of 3043221021 is 1201223403.

3043221021 is a `hidden beast` number, since 3 + 0 + 432 + 210 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2924105625 + 119115396 = 54075^2 + 10914^2 .

It is not a de Polignac number, because 3043221021 - 2¹⁷ = 3043089949 is a prime.

It is a super-2 number, since 2×3043221021² = 18522388365312564882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3043220985 and 3043221003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3043221821) 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 5 ways as a sum of consecutive naturals, for example, 169067826 + ... + 169067843.

It is an arithmetic number, because the mean of its divisors is an integer number (732627285).

Almost surely, 2^3043221021 is an apocalyptic number.

It is an amenable number.

3043221021 is a deficient number, since it is larger than the sum of its proper divisors (1352542689).

3043221021 is a wasteful number, since it uses less digits than its factorization.

3043221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338135675 (or 338135672 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3043221021 is about 55165.3969531626. The cubic root of 3043221021 is about 1449.1427387759.

Adding to 3043221021 its reverse (1201223403), we get a palindrome (4244444424).

The spelling of 3043221021 in words is "three billion, forty-three million, two hundred twenty-one thousand, twenty-one".