9922288861 has 2 divisors, whose sum is σ = 9922288862. Its totient is φ = 9922288860.

The previous prime is 9922288811. The next prime is 9922288877. The reversal of 9922288861 is 1688822299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9683740836 + 238548025 = 98406^2 + 15445^2 .

It is a cyclic number.

It is not a de Polignac number, because 9922288861 - 2¹⁵ = 9922256093 is a prime.

It is a super-2 number, since 2×9922288861² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9922288811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4961144430 + 4961144431.

It is an arithmetic number, because the mean of its divisors is an integer number (4961144431).

Almost surely, 2^9922288861 is an apocalyptic number.

It is an amenable number.

9922288861 is a deficient number, since it is larger than the sum of its proper divisors (1).

9922288861 is an equidigital number, since it uses as much as digits as its factorization.

9922288861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1990656, while the sum is 55.

The square root of 9922288861 is about 99610.6864799154. The cubic root of 9922288861 is about 2148.8393851986.

The spelling of 9922288861 in words is "nine billion, nine hundred twenty-two million, two hundred eighty-eight thousand, eight hundred sixty-one".