12121324204 has 24 divisors (see below), whose sum is σ = 23146534656. Its totient is φ = 5508306000.

The previous prime is 12121324183. The next prime is 12121324217. The reversal of 12121324204 is 40242312121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153609 + ... + 218719.

It is an arithmetic number, because the mean of its divisors is an integer number (964438944).

Almost surely, 2^12121324204 is an apocalyptic number.

It is an amenable number.

12121324204 is a deficient number, since it is larger than the sum of its proper divisors (11025210452).

12121324204 is a wasteful number, since it uses less digits than its factorization.

12121324204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69357 (or 69355 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12121324204 its reverse (40242312121), we get a palindrome (52363636325).

The spelling of 12121324204 in words is "twelve billion, one hundred twenty-one million, three hundred twenty-four thousand, two hundred four".