12011111101200 has 120 divisors (see below), whose sum is σ = 38479938821728. Its totient is φ = 3202601149440.

The previous prime is 12011111101189. The next prime is 12011111101267. The reversal of 12011111101200 is 210111111021.

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 (12).

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, 10146732 + ... + 11268468.

Almost surely, 2^{12011111101200} is an apocalyptic number.

12011111101200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011111101200 is an abundant number, since it is smaller than the sum of its proper divisors (26468827720528).

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

12011111101200 is a wasteful number, since it uses less digits than its factorization.

12011111101200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130681 (or 1130670 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 12011111101200 its reverse (210111111021), we get a palindrome (12221222212221).

The spelling of 12011111101200 in words is "twelve trillion, eleven billion, one hundred eleven million, one hundred one thousand, two hundred".