12663012 has 12 divisors (see below), whose sum is σ = 29547056. Its totient is φ = 4221000.

The previous prime is 12662999. The next prime is 12663019. The reversal of 12663012 is 21036621.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 12663012.

It is not an unprimeable number, because it can be changed into a prime (12663019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527614 + ... + 527637.

Almost surely, 2^12663012 is an apocalyptic number.

12663012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12663012 is an abundant number, since it is smaller than the sum of its proper divisors (16884044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12663012 is a wasteful number, since it uses less digits than its factorization.

12663012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055258 (or 1055256 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 12663012 is about 3558.5126106282. The cubic root of 12663012 is about 233.0839339769.

Adding to 12663012 its reverse (21036621), we get a palindrome (33699633).

It can be divided in two parts, 1266 and 3012, that added together give a triangular number (4278 = T₉₂).

The spelling of 12663012 in words is "twelve million, six hundred sixty-three thousand, twelve".