9909990999099 has 48 divisors (see below), whose sum is σ = 14747241600000. Its totient is φ = 6408836899200.

The previous prime is 9909990999049. The next prime is 9909990999109.

9909990999099 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9909990999099 - 2⁹ = 9909990998587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9909990999049) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49800202 + ... + 49998800.

It is an arithmetic number, because the mean of its divisors is an integer number (307234200000).

Almost surely, 2^{9909990999099} is an apocalyptic number.

9909990999099 is a deficient number, since it is larger than the sum of its proper divisors (4837250600901).

9909990999099 is a wasteful number, since it uses less digits than its factorization.

9909990999099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199416 (or 199413 counting only the distinct ones).

The product of its (nonzero) digits is 3486784401, while the sum is 90.

The spelling of 9909990999099 in words is "nine trillion, nine hundred nine billion, nine hundred ninety million, nine hundred ninety-nine thousand, ninety-nine".