12012451412 has 24 divisors (see below), whose sum is σ = 22674122016. Its totient is φ = 5535570528.

The previous prime is 12012451411. The next prime is 12012451421. The reversal of 12012451412 is 21415421021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012451411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146198 + ... + 213069.

It is an arithmetic number, because the mean of its divisors is an integer number (944755084).

Almost surely, 2^12012451412 is an apocalyptic number.

It is an amenable number.

12012451412 is a deficient number, since it is larger than the sum of its proper divisors (10661670604).

12012451412 is a wasteful number, since it uses less digits than its factorization.

12012451412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359927 (or 359925 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 12012451412 its reverse (21415421021), we get a palindrome (33427872433).

The spelling of 12012451412 in words is "twelve billion, twelve million, four hundred fifty-one thousand, four hundred twelve".