12001213112033 has 4 divisors (see below), whose sum is σ = 12001619013060. Its totient is φ = 12000807211008.

The previous prime is 12001213112027. The next prime is 12001213112039. The reversal of 12001213112033 is 33021131210021.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (12001213112027) and next prime (12001213112039).

It can be written as a sum of positive squares in 2 ways, for example, as 3601580315089 + 8399632796944 = 1897783^2 + 2898212^2 .

It is a cyclic number.

It is not a de Polignac number, because 12001213112033 - 2⁸ = 12001213111777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001213111996 and 12001213112014.

It is not an unprimeable number, because it can be changed into a prime (12001213112039) 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, 202906160 + ... + 202965297.

It is an arithmetic number, because the mean of its divisors is an integer number (3000404753265).

Almost surely, 2^{12001213112033} is an apocalyptic number.

It is an amenable number.

12001213112033 is a deficient number, since it is larger than the sum of its proper divisors (405901027).

12001213112033 is an equidigital number, since it uses as much as digits as its factorization.

12001213112033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405901026.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12001213112033 its reverse (33021131210021), we get a palindrome (45022344322054).

The spelling of 12001213112033 in words is "twelve trillion, one billion, two hundred thirteen million, one hundred twelve thousand, thirty-three".