12232120133 has 4 divisors (see below), whose sum is σ = 12232348128. Its totient is φ = 12231892140.

The previous prime is 12232120129. The next prime is 12232120139. The reversal of 12232120133 is 33102123221.

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 12232120133 - 2² = 12232120129 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 (12232120139) 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, 15560 + ... + 157182.

It is an arithmetic number, because the mean of its divisors is an integer number (3058087032).

Almost surely, 2^12232120133 is an apocalyptic number.

It is an amenable number.

12232120133 is a deficient number, since it is larger than the sum of its proper divisors (227995).

12232120133 is an equidigital number, since it uses as much as digits as its factorization.

12232120133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227994.

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

Adding to 12232120133 its reverse (33102123221), we get a palindrome (45334243354).

The spelling of 12232120133 in words is "twelve billion, two hundred thirty-two million, one hundred twenty thousand, one hundred thirty-three".