12002101221200 has 30 divisors (see below), whose sum is σ = 28835048184894. Its totient is φ = 4800840488320.

The previous prime is 12002101221197. The next prime is 12002101221233. The reversal of 12002101221200 is 212210120021.

It can be written as a sum of positive squares in 3 ways, for example, as 73449672256 + 11928651548944 = 271016^2 + 3453788^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15002626127 + ... + 15002626926.

Almost surely, 2^{12002101221200} is an apocalyptic number.

12002101221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002101221200 is an abundant number, since it is smaller than the sum of its proper divisors (16832946963694).

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

12002101221200 is a wasteful number, since it uses less digits than its factorization.

12002101221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30005253071 (or 30005253060 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12002101221200 its reverse (212210120021), we get a palindrome (12214311341221).

The spelling of 12002101221200 in words is "twelve trillion, two billion, one hundred one million, two hundred twenty-one thousand, two hundred".