12111010020112 has 40 divisors (see below), whose sum is σ = 23673334169016. Its totient is φ = 6001765195776.

The previous prime is 12111010020047. The next prime is 12111010020149. The reversal of 12111010020112 is 21102001011121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 26320519696 + 12084689500416 = 162236^2 + 3476304^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12111010020092 and 12111010020101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115183948 + ... + 115289044.

Almost surely, 2^{12111010020112} is an apocalyptic number.

It is an amenable number.

12111010020112 is a deficient number, since it is larger than the sum of its proper divisors (11562324148904).

12111010020112 is a wasteful number, since it uses less digits than its factorization.

12111010020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168955 (or 168949 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12111010020112 its reverse (21102001011121), we get a palindrome (33213011031233).

The spelling of 12111010020112 in words is "twelve trillion, one hundred eleven billion, ten million, twenty thousand, one hundred twelve".