999902110221012 has 48 divisors (see below), whose sum is σ = 2365980176230272. Its totient is φ = 328604296796160.

The previous prime is 999902110221011. The next prime is 999902110221029. The reversal of 999902110221012 is 210122011209999.

999902110221012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999902110221011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137562588 + ... + 144648780.

It is an arithmetic number, because the mean of its divisors is an integer number (49291253671464).

Almost surely, 2^{999902110221012} is an apocalyptic number.

It is an amenable number.

999902110221012 is an abundant number, since it is smaller than the sum of its proper divisors (1366078066009260).

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

999902110221012 is a wasteful number, since it uses less digits than its factorization.

999902110221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7251888 (or 7251886 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 48.

The spelling of 999902110221012 in words is "nine hundred ninety-nine trillion, nine hundred two billion, one hundred ten million, two hundred twenty-one thousand, twelve".