12001201200 has 180 divisors, whose sum is σ = 41749107400. Its totient is φ = 3192514560.

The previous prime is 12001201189. The next prime is 12001201231. The reversal of 12001201200 is 210210021.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1554951 + ... + 1562649.

Almost surely, 2^12001201200 is an apocalyptic number.

12001201200 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 12001201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20874553700).

12001201200 is an abundant number, since it is smaller than the sum of its proper divisors (29747906200).

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

12001201200 is a wasteful number, since it uses less digits than its factorization.

12001201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8156 (or 8142 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12001201200 its reverse (210210021), we get a palindrome (12211411221).

The spelling of 12001201200 in words is "twelve billion, one million, two hundred one thousand, two hundred".