12144521204 has 12 divisors (see below), whose sum is σ = 21260662500. Its totient is φ = 6070046208.

The previous prime is 12144521161. The next prime is 12144521209. The reversal of 12144521204 is 40212544121.

It can be written as a sum of positive squares in 2 ways, for example, as 5510092900 + 6634428304 = 74230^2 + 81452^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144521209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 541229 + ... + 563220.

It is an arithmetic number, because the mean of its divisors is an integer number (1771721875).

Almost surely, 2^12144521204 is an apocalyptic number.

It is an amenable number.

12144521204 is a deficient number, since it is larger than the sum of its proper divisors (9116141296).

12144521204 is a wasteful number, since it uses less digits than its factorization.

12144521204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107202 (or 1107200 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The spelling of 12144521204 in words is "twelve billion, one hundred forty-four million, five hundred twenty-one thousand, two hundred four".