12100120002200 has 96 divisors (see below), whose sum is σ = 28221061705200. Its totient is φ = 4824864522240.

The previous prime is 12100120002181. The next prime is 12100120002209. The reversal of 12100120002200 is 220002100121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100120002209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 534942491 + ... + 534965109.

Almost surely, 2^{12100120002200} is an apocalyptic number.

12100120002200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12100120002200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14110530852600).

12100120002200 is an abundant number, since it is smaller than the sum of its proper divisors (16120941703000).

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

12100120002200 is a wasteful number, since it uses less digits than its factorization.

12100120002200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30909 (or 30900 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12100120002200 its reverse (220002100121), we get a palindrome (12320122102321).

The spelling of 12100120002200 in words is "twelve trillion, one hundred billion, one hundred twenty million, two thousand, two hundred".