12229988 has 12 divisors (see below), whose sum is σ = 21432432. Its totient is φ = 6106440.

The previous prime is 12229981. The next prime is 12230003. The reversal of 12229988 is 88992221.

It is not an unprimeable number, because it can be changed into a prime (12229981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1943 + ... + 5313.

It is an arithmetic number, because the mean of its divisors is an integer number (1786036).

Almost surely, 2^12229988 is an apocalyptic number.

It is an amenable number.

12229988 is a deficient number, since it is larger than the sum of its proper divisors (9202444).

12229988 is a wasteful number, since it uses less digits than its factorization.

12229988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4282 (or 4280 counting only the distinct ones).

The product of its digits is 41472, while the sum is 41.

The square root of 12229988 is about 3497.1399743219. The cubic root of 12229988 is about 230.3962168634.

The spelling of 12229988 in words is "twelve million, two hundred twenty-nine thousand, nine hundred eighty-eight".