12111022012200 has 48 divisors (see below), whose sum is σ = 37544168239680. Its totient is φ = 3229605869760.

The previous prime is 12111022012169. The next prime is 12111022012207. The reversal of 12111022012200 is 221022011121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12111022012200.

It is not an unprimeable number, because it can be changed into a prime (12111022012207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10092517744 + ... + 10092518943.

It is an arithmetic number, because the mean of its divisors is an integer number (782170171660).

Almost surely, 2^{12111022012200} is an apocalyptic number.

12111022012200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12111022012200 is an abundant number, since it is smaller than the sum of its proper divisors (25433146227480).

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

12111022012200 is a wasteful number, since it uses less digits than its factorization.

12111022012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20185036706 (or 20185036697 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12111022012200 its reverse (221022011121), we get a palindrome (12332044023321).

The spelling of 12111022012200 in words is "twelve trillion, one hundred eleven billion, twenty-two million, twelve thousand, two hundred".