212331223133 has 8 divisors (see below), whose sum is σ = 224832930552. Its totient is φ = 199830808576.

The previous prime is 212331223109. The next prime is 212331223151. The reversal of 212331223133 is 331322133212.

It can be written as a sum of positive squares in 4 ways, for example, as 12796586884 + 199534636249 = 113122^2 + 446693^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212331223133 - 2²⁶ = 212264114269 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 (212331223033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25691 + ... + 652167.

It is an arithmetic number, because the mean of its divisors is an integer number (28104116319).

Almost surely, 2^212331223133 is an apocalyptic number.

It is an amenable number.

212331223133 is a deficient number, since it is larger than the sum of its proper divisors (12501707419).

212331223133 is a wasteful number, since it uses less digits than its factorization.

212331223133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646431.

The product of its digits is 3888, while the sum is 26.

Adding to 212331223133 its reverse (331322133212), we get a palindrome (543653356345).

The spelling of 212331223133 in words is "two hundred twelve billion, three hundred thirty-one million, two hundred twenty-three thousand, one hundred thirty-three".