12001033331 has 4 divisors (see below), whose sum is σ = 13715466672. Its totient is φ = 10286599992.

The previous prime is 12001033313. The next prime is 12001033337. The reversal of 12001033331 is 13333010021.

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

It is a cyclic number.

It is not a de Polignac number, because 12001033331 - 2¹⁴ = 12001016947 is a prime.

It is a super-2 number, since 2×12001033331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001033337) 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, 857216660 + ... + 857216673.

It is an arithmetic number, because the mean of its divisors is an integer number (3428866668).

Almost surely, 2^12001033331 is an apocalyptic number.

12001033331 is a deficient number, since it is larger than the sum of its proper divisors (1714433341).

12001033331 is an equidigital number, since it uses as much as digits as its factorization.

12001033331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714433340.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 12001033331 its reverse (13333010021), we get a palindrome (25334043352).

The spelling of 12001033331 in words is "twelve billion, one million, thirty-three thousand, three hundred thirty-one".