12198349983972 has 96 divisors (see below), whose sum is σ = 29838412800000. Its totient is φ = 3873427818624.

The previous prime is 12198349983959. The next prime is 12198349983979. The reversal of 12198349983972 is 27938994389121.

It is a junction number, because it is equal to n+sod(n) for n = 12198349983894 and 12198349983903.

It is not an unprimeable number, because it can be changed into a prime (12198349983979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38302729 + ... + 38619887.

It is an arithmetic number, because the mean of its divisors is an integer number (310816800000).

Almost surely, 2^{12198349983972} is an apocalyptic number.

12198349983972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12198349983972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14919206400000).

12198349983972 is an abundant number, since it is smaller than the sum of its proper divisors (17640062816028).

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

12198349983972 is a wasteful number, since it uses less digits than its factorization.

12198349983972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318673 (or 318671 counting only the distinct ones).

The product of its digits is 423263232, while the sum is 75.

The spelling of 12198349983972 in words is "twelve trillion, one hundred ninety-eight billion, three hundred forty-nine million, nine hundred eighty-three thousand, nine hundred seventy-two".