12218988000 has 384 divisors, whose sum is σ = 42923986560. Its totient is φ = 3027763200.

The previous prime is 12218987999. The next prime is 12218988011. The reversal of 12218988000 is 88981221.

It is a self number, because there is not a number n which added to its sum of digits gives 12218988000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18155664 + ... + 18156336.

It is an arithmetic number, because the mean of its divisors is an integer number (111781215).

Almost surely, 2^12218988000 is an apocalyptic number.

12218988000 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 12218988000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21461993280).

12218988000 is an abundant number, since it is smaller than the sum of its proper divisors (30704998560).

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

12218988000 is a wasteful number, since it uses less digits than its factorization.

12218988000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 39.

The spelling of 12218988000 in words is "twelve billion, two hundred eighteen million, nine hundred eighty-eight thousand".