12001201011011 has 8 divisors (see below), whose sum is σ = 12141243681504. Its totient is φ = 11861491380480.

The previous prime is 12001201011001. The next prime is 12001201011017. The reversal of 12001201011011 is 11011010210021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12001201011011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001201010983 and 12001201011001.

It is not an unprimeable number, because it can be changed into a prime (12001201011017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83187500 + ... + 83331641.

It is an arithmetic number, because the mean of its divisors is an integer number (1517655460188).

Almost surely, 2^{12001201011011} is an apocalyptic number.

12001201011011 is a deficient number, since it is larger than the sum of its proper divisors (140042670493).

12001201011011 is an equidigital number, since it uses as much as digits as its factorization.

12001201011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166519981.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12001201011011 its reverse (11011010210021), we get a palindrome (23012211221032).

The spelling of 12001201011011 in words is "twelve trillion, one billion, two hundred one million, eleven thousand, eleven".