990001012012 has 6 divisors (see below), whose sum is σ = 1732501771028. Its totient is φ = 495000506004.

The previous prime is 990001011949. The next prime is 990001012081. The reversal of 990001012012 is 210210100099.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 123750126498 + ... + 123750126505.

Almost surely, 2^990001012012 is an apocalyptic number.

It is an amenable number.

990001012012 is a deficient number, since it is larger than the sum of its proper divisors (742500759016).

990001012012 is a wasteful number, since it uses less digits than its factorization.

990001012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247500253007 (or 247500253005 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 990001012012 in words is "nine hundred ninety billion, one million, twelve thousand, twelve".