12201120002000 has 80 divisors (see below), whose sum is σ = 29512120906944. Its totient is φ = 4878824720000.

The previous prime is 12201120001937. The next prime is 12201120002009. The reversal of 12201120002000 is 20002110221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201120002009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5008955 + ... + 7035045.

Almost surely, 2^{12201120002000} is an apocalyptic number.

12201120002000 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 12201120002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14756060453472).

12201120002000 is an abundant number, since it is smaller than the sum of its proper divisors (17311000904944).

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

12201120002000 is a wasteful number, since it uses less digits than its factorization.

12201120002000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029125 (or 2029109 counting only the distinct ones).

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

Adding to 12201120002000 its reverse (20002110221), we get a palindrome (12221122112221).

The spelling of 12201120002000 in words is "twelve trillion, two hundred one billion, one hundred twenty million, two thousand".