12197205975 has 24 divisors (see below), whose sum is σ = 20172514432. Its totient is φ = 6503090400.

The previous prime is 12197205973. The next prime is 12197205997. The reversal of 12197205975 is 57950279121.

It is a happy number.

It is not a de Polignac number, because 12197205975 - 2¹ = 12197205973 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12197205973) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 225414 + ... + 274236.

Almost surely, 2^12197205975 is an apocalyptic number.

12197205975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12197205975 is a deficient number, since it is larger than the sum of its proper divisors (7975308457).

12197205975 is a wasteful number, since it uses less digits than its factorization.

12197205975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52167 (or 52162 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 48.

The spelling of 12197205975 in words is "twelve billion, one hundred ninety-seven million, two hundred five thousand, nine hundred seventy-five".