9394222081 has 2 divisors, whose sum is σ = 9394222082. Its totient is φ = 9394222080.

The previous prime is 9394222063. The next prime is 9394222087. The reversal of 9394222081 is 1802224939.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8241008400 + 1153213681 = 90780^2 + 33959^2 .

It is a cyclic number.

It is not a de Polignac number, because 9394222081 - 2⁹ = 9394221569 is a prime.

It is a super-2 number, since 2×9394222081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9394222087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4697111040 + 4697111041.

It is an arithmetic number, because the mean of its divisors is an integer number (4697111041).

Almost surely, 2^9394222081 is an apocalyptic number.

It is an amenable number.

9394222081 is a deficient number, since it is larger than the sum of its proper divisors (1).

9394222081 is an equidigital number, since it uses as much as digits as its factorization.

9394222081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 9394222081 is about 96923.7952259403. The cubic root of 9394222081 is about 2110.0217933105.

The spelling of 9394222081 in words is "nine billion, three hundred ninety-four million, two hundred twenty-two thousand, eighty-one".