212333213009 has 2 divisors, whose sum is σ = 212333213010. Its totient is φ = 212333213008.

The previous prime is 212333212991. The next prime is 212333213047. The reversal of 212333213009 is 900312333212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205082179600 + 7251033409 = 452860^2 + 85153^2 .

It is a cyclic number.

It is not a de Polignac number, because 212333213009 - 2⁸ = 212333212753 is a prime.

It is not a weakly prime, because it can be changed into another prime (212333243009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106166606504 + 106166606505.

It is an arithmetic number, because the mean of its divisors is an integer number (106166606505).

Almost surely, 2^212333213009 is an apocalyptic number.

It is an amenable number.

212333213009 is a deficient number, since it is larger than the sum of its proper divisors (1).

212333213009 is an equidigital number, since it uses as much as digits as its factorization.

212333213009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 29.

The spelling of 212333213009 in words is "two hundred twelve billion, three hundred thirty-three million, two hundred thirteen thousand, nine".