3042782221 has 2 divisors, whose sum is σ = 3042782222. Its totient is φ = 3042782220.

The previous prime is 3042782203. The next prime is 3042782231. The reversal of 3042782221 is 1222872403.

3042782221 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., 1649253321 + 1393528900 = 40611^2 + 37330^2 .

It is a cyclic number.

It is not a de Polignac number, because 3042782221 - 2¹⁷ = 3042651149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3042782231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1521391110 + 1521391111.

It is an arithmetic number, because the mean of its divisors is an integer number (1521391111).

Almost surely, 2^3042782221 is an apocalyptic number.

It is an amenable number.

3042782221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3042782221 is an equidigital number, since it uses as much as digits as its factorization.

3042782221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 3042782221 is about 55161.4196789749. The cubic root of 3042782221 is about 1449.0730851212.

The spelling of 3042782221 in words is "three billion, forty-two million, seven hundred eighty-two thousand, two hundred twenty-one".