12033212213 has 4 divisors (see below), whose sum is σ = 13127140608. Its totient is φ = 10939283820.

The previous prime is 12033212207. The next prime is 12033212231. The reversal of 12033212213 is 31221233021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31221233021 = 11 ⋅2838293911.

It is a cyclic number.

It is not a de Polignac number, because 12033212213 - 2²⁸ = 11764776757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12033212203) 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, 546964181 + ... + 546964202.

It is an arithmetic number, because the mean of its divisors is an integer number (3281785152).

Almost surely, 2^12033212213 is an apocalyptic number.

It is an amenable number.

12033212213 is a deficient number, since it is larger than the sum of its proper divisors (1093928395).

12033212213 is a wasteful number, since it uses less digits than its factorization.

12033212213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093928394.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12033212213 its reverse (31221233021), we get a palindrome (43254445234).

The spelling of 12033212213 in words is "twelve billion, thirty-three million, two hundred twelve thousand, two hundred thirteen".