9899102012 has 48 divisors (see below), whose sum is σ = 17745561792. Its totient is φ = 4830658560.

The previous prime is 9899102009. The next prime is 9899102029. The reversal of 9899102012 is 2102019989.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17155868 + ... + 17156444.

It is an arithmetic number, because the mean of its divisors is an integer number (369699204).

Almost surely, 2^9899102012 is an apocalyptic number.

It is an amenable number.

9899102012 is a deficient number, since it is larger than the sum of its proper divisors (7846459780).

9899102012 is a wasteful number, since it uses less digits than its factorization.

9899102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158 (or 1156 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 9899102012 is about 99494.2310488402. The cubic root of 9899102012 is about 2147.1642449675.

The spelling of 9899102012 in words is "nine billion, eight hundred ninety-nine million, one hundred two thousand, twelve".