12198488042 has 16 divisors (see below), whose sum is σ = 20237825832. Its totient is φ = 5477906880.

The previous prime is 12198488011. The next prime is 12198488047. The reversal of 12198488042 is 24088489121.

It can be written as a sum of positive squares in 4 ways, for example, as 12172488241 + 25999801 = 110329^2 + 5099^2 .

It is a super-2 number, since 2×12198488042² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12198488047) 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 7 ways as a sum of consecutive naturals, for example, 6339209 + ... + 6341132.

Almost surely, 2^12198488042 is an apocalyptic number.

12198488042 is a deficient number, since it is larger than the sum of its proper divisors (8039337790).

12198488042 is a wasteful number, since it uses less digits than its factorization.

12198488042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12680393.

The product of its (nonzero) digits is 294912, while the sum is 47.

The spelling of 12198488042 in words is "twelve billion, one hundred ninety-eight million, four hundred eighty-eight thousand, forty-two".