12231211133 has 2 divisors, whose sum is σ = 12231211134. Its totient is φ = 12231211132.

The previous prime is 12231211121. The next prime is 12231211207. The reversal of 12231211133 is 33111213221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11828085049 + 403126084 = 108757^2 + 20078^2 .

It is a cyclic number.

It is not a de Polignac number, because 12231211133 - 2²² = 12227016829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12231211633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115605566 + 6115605567.

It is an arithmetic number, because the mean of its divisors is an integer number (6115605567).

Almost surely, 2^12231211133 is an apocalyptic number.

It is an amenable number.

12231211133 is a deficient number, since it is larger than the sum of its proper divisors (1).

12231211133 is an equidigital number, since it uses as much as digits as its factorization.

12231211133 is an evil number, because the sum of its binary digits is even.

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

Adding to 12231211133 its reverse (33111213221), we get a palindrome (45342424354).

The spelling of 12231211133 in words is "twelve billion, two hundred thirty-one million, two hundred eleven thousand, one hundred thirty-three".