12001201122108 has 288 divisors, whose sum is σ = 33756929095680. Its totient is φ = 3306202099200.

The previous prime is 12001201122103. The next prime is 12001201122109. The reversal of 12001201122108 is 80122110210021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001201122101) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 48173635 + ... + 48422117.

It is an arithmetic number, because the mean of its divisors is an integer number (117211559360).

Almost surely, 2^{12001201122108} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12001201122108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16878464547840).

12001201122108 is an abundant number, since it is smaller than the sum of its proper divisors (21755727973572).

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

12001201122108 is a wasteful number, since it uses less digits than its factorization.

12001201122108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248609 (or 248596 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 12001201122108 its reverse (80122110210021), we get a palindrome (92123311332129).

The spelling of 12001201122108 in words is "twelve trillion, one billion, two hundred one million, one hundred twenty-two thousand, one hundred eight".