12197194900 has 72 divisors (see below), whose sum is σ = 29805592320. Its totient is φ = 4292256000.

The previous prime is 12197194897. The next prime is 12197194937. The reversal of 12197194900 is 949179121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144745 + ... + 212944.

It is an arithmetic number, because the mean of its divisors is an integer number (413966560).

Almost surely, 2^12197194900 is an apocalyptic number.

12197194900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12197194900 is an abundant number, since it is smaller than the sum of its proper divisors (17608397420).

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

12197194900 is a wasteful number, since it uses less digits than its factorization.

12197194900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357745 (or 357738 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 43.

The spelling of 12197194900 in words is "twelve billion, one hundred ninety-seven million, one hundred ninety-four thousand, nine hundred".