12012012112 has 40 divisors (see below), whose sum is σ = 23928139136. Its totient is φ = 5837360256.

The previous prime is 12012012083. The next prime is 12012012151. The reversal of 12012012112 is 21121021021.

It is a junction number, because it is equal to n+sod(n) for n = 12012012092 and 12012012101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561973 + ... + 582955.

Almost surely, 2^12012012112 is an apocalyptic number.

It is an amenable number.

12012012112 is a deficient number, since it is larger than the sum of its proper divisors (11916127024).

12012012112 is a wasteful number, since it uses less digits than its factorization.

12012012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21995 (or 21989 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12012012112 its reverse (21121021021), we get a palindrome (33133033133).

The spelling of 12012012112 in words is "twelve billion, twelve million, twelve thousand, one hundred twelve".