9999122227 has 2 divisors, whose sum is σ = 9999122228. Its totient is φ = 9999122226.

The previous prime is 9999122171. The next prime is 9999122249. The reversal of 9999122227 is 7222219999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9999122227 - 2⁷ = 9999122099 is a prime.

It is not a weakly prime, because it can be changed into another prime (9999222227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999561113 + 4999561114.

It is an arithmetic number, because the mean of its divisors is an integer number (4999561114).

Almost surely, 2^9999122227 is an apocalyptic number.

9999122227 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999122227 is an equidigital number, since it uses as much as digits as its factorization.

9999122227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 52.

The square root of 9999122227 is about 99995.6110386851. The cubic root of 9999122227 is about 2154.3716513674.

The spelling of 9999122227 in words is "nine billion, nine hundred ninety-nine million, one hundred twenty-two thousand, two hundred twenty-seven".