12881212 has 12 divisors (see below), whose sum is σ = 22775200. Its totient is φ = 6374016.

The previous prime is 12881207. The next prime is 12881251. The reversal of 12881212 is 21218821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16212 + ... + 16987.

Almost surely, 2^12881212 is an apocalyptic number.

It is an amenable number.

12881212 is a deficient number, since it is larger than the sum of its proper divisors (9893988).

12881212 is a wasteful number, since it uses less digits than its factorization.

12881212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33300 (or 33298 counting only the distinct ones).

The product of its digits is 512, while the sum is 25.

The square root of 12881212 is about 3589.0405403116. The cubic root of 12881212 is about 234.4150958839.

It can be divided in two parts, 1288 and 1212, that added together give a square (2500 = 50²).

The spelling of 12881212 in words is "twelve million, eight hundred eighty-one thousand, two hundred twelve".