12001111221133 has 4 divisors (see below), whose sum is σ = 12256454013120. Its totient is φ = 11745768429148.

The previous prime is 12001111221101. The next prime is 12001111221149. The reversal of 12001111221133 is 33112211110021.

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 12001111221133 - 2⁵ = 12001111221101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12001111221133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001111621133) 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, 127671395923 + ... + 127671396016.

It is an arithmetic number, because the mean of its divisors is an integer number (3064113503280).

Almost surely, 2^{12001111221133} is an apocalyptic number.

It is an amenable number.

12001111221133 is a deficient number, since it is larger than the sum of its proper divisors (255342791987).

12001111221133 is an equidigital number, since it uses as much as digits as its factorization.

12001111221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255342791986.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 12001111221133 its reverse (33112211110021), we get a palindrome (45113322331154).

The spelling of 12001111221133 in words is "twelve trillion, one billion, one hundred eleven million, two hundred twenty-one thousand, one hundred thirty-three".