12200212121200 has 30 divisors (see below), whose sum is σ = 29311009622144. Its totient is φ = 4880084848320.

The previous prime is 12200212121191. The next prime is 12200212121257. The reversal of 12200212121200 is 212121200221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 15250264752 + ... + 15250265551.

Almost surely, 2^{12200212121200} is an apocalyptic number.

12200212121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12200212121200 is an abundant number, since it is smaller than the sum of its proper divisors (17110797500944).

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

12200212121200 is a wasteful number, since it uses less digits than its factorization.

12200212121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30500530321 (or 30500530310 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12200212121200 its reverse (212121200221), we get a palindrome (12412333321421).

The spelling of 12200212121200 in words is "twelve trillion, two hundred billion, two hundred twelve million, one hundred twenty-one thousand, two hundred".