12197199980 has 48 divisors (see below), whose sum is σ = 29280820800. Its totient is φ = 4180819968.

The previous prime is 12197199947. The next prime is 12197199991. The reversal of 12197199980 is 8999179121.

It is a super-2 number, since 2×12197199980² (a number of 21 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 690296 + ... + 707744.

It is an arithmetic number, because the mean of its divisors is an integer number (610017100).

Almost surely, 2^12197199980 is an apocalyptic number.

12197199980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12197199980 is an abundant number, since it is smaller than the sum of its proper divisors (17083620820).

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

12197199980 is a wasteful number, since it uses less digits than its factorization.

12197199980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22458 (or 22456 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 56.

The spelling of 12197199980 in words is "twelve billion, one hundred ninety-seven million, one hundred ninety-nine thousand, nine hundred eighty".