12121210204 has 24 divisors (see below), whose sum is σ = 21575876000. Its totient is φ = 5956822080.

The previous prime is 12121210177. The next prime is 12121210207. The reversal of 12121210204 is 40201212121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121210207) 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, 323602 + ... + 359110.

Almost surely, 2^12121210204 is an apocalyptic number.

It is an amenable number.

12121210204 is a deficient number, since it is larger than the sum of its proper divisors (9454665796).

12121210204 is a wasteful number, since it uses less digits than its factorization.

12121210204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36973 (or 36971 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12121210204 its reverse (40201212121), we get a palindrome (52322422325).

The spelling of 12121210204 in words is "twelve billion, one hundred twenty-one million, two hundred ten thousand, two hundred four".