12111111201200 has 120 divisors (see below), whose sum is σ = 31743871486896. Its totient is φ = 4403797632000.

The previous prime is 12111111201199. The next prime is 12111111201229. The reversal of 12111111201200 is 210211111121.

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, 92603054 + ... + 92733746.

Almost surely, 2^{12111111201200} is an apocalyptic number.

12111111201200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12111111201200 is an abundant number, since it is smaller than the sum of its proper divisors (19632760285696).

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

12111111201200 is a wasteful number, since it uses less digits than its factorization.

12111111201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151783 (or 151772 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12111111201200 its reverse (210211111121), we get a palindrome (12321322312321).

It can be divided in two parts, 121111 and 11201200, that added together give a palindrome (11322311).

The spelling of 12111111201200 in words is "twelve trillion, one hundred eleven billion, one hundred eleven million, two hundred one thousand, two hundred".