12011112210001 has 4 divisors (see below), whose sum is σ = 12717648222372. Its totient is φ = 11304576197632.

The previous prime is 12011112209939. The next prime is 12011112210007. The reversal of 12011112210001 is 10001221111021.

It is a happy number.

12011112210001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7919716011601 + 4091396198400 = 2814199^2 + 2022720^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011112210001 - 2¹⁷ = 12011112078929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011112210007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353268006160 + ... + 353268006193.

It is an arithmetic number, because the mean of its divisors is an integer number (3179412055593).

Almost surely, 2^{12011112210001} is an apocalyptic number.

It is an amenable number.

12011112210001 is a deficient number, since it is larger than the sum of its proper divisors (706536012371).

12011112210001 is an equidigital number, since it uses as much as digits as its factorization.

12011112210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706536012370.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12011112210001 its reverse (10001221111021), we get a palindrome (22012333321022).

The spelling of 12011112210001 in words is "twelve trillion, eleven billion, one hundred twelve million, two hundred ten thousand, one".