99226890009 has 81 divisors (see below), whose sum is σ = 159890356119. Its totient is φ = 59270964480.

The previous prime is 99226889987. The next prime is 99226890029. The reversal of 99226890009 is 90009862299.

The square root of 99226890009 is 315003.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 78594440409 + 20632449600 = 280347^2 + 143640^2 .

It is not a de Polignac number, because 99226890009 - 2¹¹ = 99226887961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99226890029) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 503689699 + ... + 503689895.

Almost surely, 2^99226890009 is an apocalyptic number.

99226890009 is the 315003-rd square number.

99226890009 is the 157502-nd centered octagonal number.

It is an amenable number.

99226890009 is a deficient number, since it is larger than the sum of its proper divisors (60663466110).

99226890009 is a wasteful number, since it uses less digits than its factorization.

99226890009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The spelling of 99226890009 in words is "ninety-nine billion, two hundred twenty-six million, eight hundred ninety thousand, nine".