12180988217 has 8 divisors (see below), whose sum is σ = 12826514400. Its totient is φ = 11535904224.

The previous prime is 12180988201. The next prime is 12180988219. The reversal of 12180988217 is 71288908121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12180988217 - 2⁴ = 12180988201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12180988219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53228 + ... + 164909.

It is an arithmetic number, because the mean of its divisors is an integer number (1603314300).

Almost surely, 2^12180988217 is an apocalyptic number.

It is an amenable number.

12180988217 is a deficient number, since it is larger than the sum of its proper divisors (645526183).

12180988217 is a wasteful number, since it uses less digits than its factorization.

12180988217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221095.

The product of its (nonzero) digits is 129024, while the sum is 47.

The spelling of 12180988217 in words is "twelve billion, one hundred eighty million, nine hundred eighty-eight thousand, two hundred seventeen".