12000222000 has 240 divisors, whose sum is σ = 45137715168. Its totient is φ = 2953843200.

The previous prime is 12000221983. The next prime is 12000222037. The reversal of 12000222000 is 22200021.

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 (9).

12000222000 is a modest number, since divided by 222000 gives 12000 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 208359 + ... + 259641.

Almost surely, 2^12000222000 is an apocalyptic number.

12000222000 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 12000222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22568857584).

12000222000 is an abundant number, since it is smaller than the sum of its proper divisors (33137493168).

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

12000222000 is a wasteful number, since it uses less digits than its factorization.

12000222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51325 (or 51306 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 12000222000 its reverse (22200021), we get a palindrome (12022422021).

The spelling of 12000222000 in words is "twelve billion, two hundred twenty-two thousand".