9999099100 has 36 divisors (see below), whose sum is σ = 22974404544. Its totient is φ = 3764366080.

The previous prime is 9999099067. The next prime is 9999099119. The reversal of 9999099100 is 19909999.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 2939212 + ... + 2942611.

It is an arithmetic number, because the mean of its divisors is an integer number (638177904).

Almost surely, 2^9999099100 is an apocalyptic number.

It is an amenable number.

9999099100 is an abundant number, since it is smaller than the sum of its proper divisors (12975305444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9999099100 is a wasteful number, since it uses less digits than its factorization.

9999099100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5881854 (or 5881847 counting only the distinct ones).

The product of its (nonzero) digits is 531441, while the sum is 55.

The square root of 9999099100 is about 99995.4953985428. The cubic root of 9999099100 is about 2154.3699904152.

The spelling of 9999099100 in words is "nine billion, nine hundred ninety-nine million, ninety-nine thousand, one hundred".