990000111112 has 8 divisors (see below), whose sum is σ = 1856250208350. Its totient is φ = 495000055552.

The previous prime is 990000111091. The next prime is 990000111119. The reversal of 990000111112 is 211111000099.

It can be written as a sum of positive squares in only one way, i.e., 775551467716 + 214448643396 = 880654^2 + 463086^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (990000111119) 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 as a sum of consecutive naturals, namely, 61875006937 + ... + 61875006952.

Almost surely, 2^990000111112 is an apocalyptic number.

It is an amenable number.

990000111112 is a deficient number, since it is larger than the sum of its proper divisors (866250097238).

990000111112 is a wasteful number, since it uses less digits than its factorization.

990000111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123750013895 (or 123750013891 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 25.

The spelling of 990000111112 in words is "nine hundred ninety billion, one hundred eleven thousand, one hundred twelve".