12111120016 has 40 divisors (see below), whose sum is σ = 24114635384. Its totient is φ = 5888194560.

The previous prime is 12111120013. The next prime is 12111120017. The reversal of 12111120016 is 61002111121.

It can be written as a sum of positive squares in 4 ways, for example, as 46294416 + 12064825600 = 6804^2 + 109840^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (12111120013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1096216 + ... + 1107208.

Almost surely, 2^12111120016 is an apocalyptic number.

12111120016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12111120016 is a deficient number, since it is larger than the sum of its proper divisors (12003515368).

12111120016 is a wasteful number, since it uses less digits than its factorization.

12111120016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12899 (or 12893 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 12111120016 its reverse (61002111121), we get a palindrome (73113231137).

The spelling of 12111120016 in words is "twelve billion, one hundred eleven million, one hundred twenty thousand, sixteen".