12000000201100 has 72 divisors (see below), whose sum is σ = 26212899399008. Its totient is φ = 4768145740800.

The previous prime is 12000000201097. The next prime is 12000000201109. The reversal of 12000000201100 is 110200000021.

It is not an unprimeable number, because it can be changed into a prime (12000000201109) 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, 59449345 + ... + 59650855.

Almost surely, 2^{12000000201100} is an apocalyptic number.

12000000201100 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 12000000201100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13106449699504).

12000000201100 is an abundant number, since it is smaller than the sum of its proper divisors (14212899197908).

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

12000000201100 is a wasteful number, since it uses less digits than its factorization.

12000000201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205475 (or 205468 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 12000000201100 its reverse (110200000021), we get a palindrome (12110200201121).

The spelling of 12000000201100 in words is "twelve trillion, two hundred one thousand, one hundred".