12033220013 has 4 divisors (see below), whose sum is σ = 12033588060. Its totient is φ = 12032851968.

The previous prime is 12033219977. The next prime is 12033220019. The reversal of 12033220013 is 31002233021.

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 11974268329 + 58951684 = 109427^2 + 7678^2 .

It is a cyclic number.

It is not a de Polignac number, because 12033220013 - 2⁶ = 12033219949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12033219973 and 12033220000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12033220019) 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, 129620 + ... + 202157.

It is an arithmetic number, because the mean of its divisors is an integer number (3008397015).

Almost surely, 2^12033220013 is an apocalyptic number.

It is an amenable number.

12033220013 is a deficient number, since it is larger than the sum of its proper divisors (368047).

12033220013 is an equidigital number, since it uses as much as digits as its factorization.

12033220013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368046.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12033220013 its reverse (31002233021), we get a palindrome (43035453034).

The spelling of 12033220013 in words is "twelve billion, thirty-three million, two hundred twenty thousand, thirteen".