12197851200 has 126 divisors (see below), whose sum is σ = 43354094394. Its totient is φ = 3252756480.

The previous prime is 12197851189. The next prime is 12197851241. The reversal of 12197851200 is 215879121.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 388247616 + 11809603584 = 19704^2 + 108672^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 409137 + ... + 437936.

Almost surely, 2^12197851200 is an apocalyptic number.

12197851200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12197851200 is an abundant number, since it is smaller than the sum of its proper divisors (31156243194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12197851200 is a wasteful number, since it uses less digits than its factorization.

12197851200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847101 (or 847083 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The spelling of 12197851200 in words is "twelve billion, one hundred ninety-seven million, eight hundred fifty-one thousand, two hundred".