12172980000 has 240 divisors, whose sum is σ = 41670611136. Its totient is φ = 3104640000.

The previous prime is 12172979981. The next prime is 12172980011. The reversal of 12172980000 is 8927121.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 12172980000.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1375590 + ... + 1384410.

Almost surely, 2^12172980000 is an apocalyptic number.

12172980000 is a gapful number since it is divisible by the number (10) 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 12172980000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20835305568).

12172980000 is an abundant number, since it is smaller than the sum of its proper divisors (29497631136).

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

12172980000 is an equidigital number, since it uses as much as digits as its factorization.

12172980000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8877 (or 8854 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The spelling of 12172980000 in words is "twelve billion, one hundred seventy-two million, nine hundred eighty thousand".