12000001200 has 120 divisors (see below), whose sum is σ = 41934595776. Its totient is φ = 2909088000.

The previous prime is 12000001159. The next prime is 12000001231. The reversal of 12000001200 is 210000021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 441346 + ... + 467745.

Almost surely, 2^12000001200 is an apocalyptic number.

12000001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000001200 is an abundant number, since it is smaller than the sum of its proper divisors (29934594576).

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

12000001200 is a wasteful number, since it uses less digits than its factorization.

12000001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909123 (or 909112 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 12000001200 its reverse (210000021), we get a palindrome (12210001221).

The spelling of 12000001200 in words is "twelve billion, one thousand, two hundred".