999120022112 has 24 divisors (see below), whose sum is σ = 1996376018616. Its totient is φ = 492103890432.

The previous prime is 999120022081. The next prime is 999120022139. The reversal of 999120022112 is 211220021999.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233001593 + ... + 233005880.

It is an arithmetic number, because the mean of its divisors is an integer number (83182334109).

Almost surely, 2^999120022112 is an apocalyptic number.

It is an amenable number.

999120022112 is a deficient number, since it is larger than the sum of its proper divisors (997255996504).

999120022112 is a wasteful number, since it uses less digits than its factorization.

999120022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466007550 (or 466007542 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 999120022112 in words is "nine hundred ninety-nine billion, one hundred twenty million, twenty-two thousand, one hundred twelve".