999102100012 has 24 divisors (see below), whose sum is σ = 1749291489792. Its totient is φ = 499304610000.

The previous prime is 999102099991. The next prime is 999102100019. The reversal of 999102100012 is 210001201999.

It is not an unprimeable number, because it can be changed into a prime (999102100019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109895587 + ... + 109904677.

It is an arithmetic number, because the mean of its divisors is an integer number (72887145408).

Almost surely, 2^999102100012 is an apocalyptic number.

It is an amenable number.

999102100012 is a deficient number, since it is larger than the sum of its proper divisors (750189389780).

999102100012 is a wasteful number, since it uses less digits than its factorization.

999102100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19629 (or 19627 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 34.

The spelling of 999102100012 in words is "nine hundred ninety-nine billion, one hundred two million, one hundred thousand, twelve".