9843014221 has 2 divisors, whose sum is σ = 9843014222. Its totient is φ = 9843014220.

The previous prime is 9843014219. The next prime is 9843014231. The reversal of 9843014221 is 1224103489.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9382053321 + 460960900 = 96861^2 + 21470^2 .

It is a cyclic number.

It is not a de Polignac number, because 9843014221 - 2¹ = 9843014219 is a prime.

Together with 9843014219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9843014231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4921507110 + 4921507111.

It is an arithmetic number, because the mean of its divisors is an integer number (4921507111).

Almost surely, 2^9843014221 is an apocalyptic number.

It is an amenable number.

9843014221 is a deficient number, since it is larger than the sum of its proper divisors (1).

9843014221 is an equidigital number, since it uses as much as digits as its factorization.

9843014221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 9843014221 is about 99211.9661180041. The cubic root of 9843014221 is about 2143.1013219742.

The spelling of 9843014221 in words is "nine billion, eight hundred forty-three million, fourteen thousand, two hundred twenty-one".