3021216349 has 2 divisors, whose sum is σ = 3021216350. Its totient is φ = 3021216348.

The previous prime is 3021216311. The next prime is 3021216361. The reversal of 3021216349 is 9436121203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1794115449 + 1227100900 = 42357^2 + 35030^2 .

It is an emirp because it is prime and its reverse (9436121203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3021216349 - 2¹⁹ = 3020692061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3021216349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3021216379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1510608174 + 1510608175.

It is an arithmetic number, because the mean of its divisors is an integer number (1510608175).

Almost surely, 2^3021216349 is an apocalyptic number.

It is an amenable number.

3021216349 is a deficient number, since it is larger than the sum of its proper divisors (1).

3021216349 is an equidigital number, since it uses as much as digits as its factorization.

3021216349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 3021216349 is about 54965.5924101615. The cubic root of 3021216349 is about 1445.6415056901.

The spelling of 3021216349 in words is "three billion, twenty-one million, two hundred sixteen thousand, three hundred forty-nine".