3021441721 has 2 divisors, whose sum is σ = 3021441722. Its totient is φ = 3021441720.

The previous prime is 3021441697. The next prime is 3021441733. The reversal of 3021441721 is 1271441203.

3021441721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2946861225 + 74580496 = 54285^2 + 8636^2 .

It is a cyclic number.

It is not a de Polignac number, because 3021441721 - 2¹³ = 3021433529 is a prime.

It is a super-2 number, since 2×3021441721² = 18258220146798883682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3021481721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1510720860 + 1510720861.

It is an arithmetic number, because the mean of its divisors is an integer number (1510720861).

Almost surely, 2^3021441721 is an apocalyptic number.

It is an amenable number.

3021441721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3021441721 is an equidigital number, since it uses as much as digits as its factorization.

3021441721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 3021441721 is about 54967.6424908327. The cubic root of 3021441721 is about 1445.6774513687.

Adding to 3021441721 its reverse (1271441203), we get a palindrome (4292882924).

The spelling of 3021441721 in words is "three billion, twenty-one million, four hundred forty-one thousand, seven hundred twenty-one".