12011112211201 has 4 divisors (see below), whose sum is σ = 12014394836400. Its totient is φ = 12007829586004.

The previous prime is 12011112211193. The next prime is 12011112211213. The reversal of 12011112211201 is 10211221111021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12011112211201 - 2³ = 12011112211193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011116211201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1641307111 + ... + 1641314428.

It is an arithmetic number, because the mean of its divisors is an integer number (3003598709100).

Almost surely, 2^{12011112211201} is an apocalyptic number.

It is an amenable number.

12011112211201 is a deficient number, since it is larger than the sum of its proper divisors (3282625199).

12011112211201 is an equidigital number, since it uses as much as digits as its factorization.

12011112211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282625198.

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

Adding to 12011112211201 its reverse (10211221111021), we get a palindrome (22222333322222).

The spelling of 12011112211201 in words is "twelve trillion, eleven billion, one hundred twelve million, two hundred eleven thousand, two hundred one".