212330999 has 2 divisors, whose sum is σ = 212331000. Its totient is φ = 212330998.

The previous prime is 212330983. The next prime is 212331089. The reversal of 212330999 is 999033212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212330999 - 2⁴ = 212330983 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212338999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106165499 + 106165500.

It is an arithmetic number, because the mean of its divisors is an integer number (106165500).

Almost surely, 2^212330999 is an apocalyptic number.

212330999 is a deficient number, since it is larger than the sum of its proper divisors (1).

212330999 is an equidigital number, since it uses as much as digits as its factorization.

212330999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 212330999 is about 14571.5818976527. The cubic root of 212330999 is about 596.5833580444.

The spelling of 212330999 in words is "two hundred twelve million, three hundred thirty thousand, nine hundred ninety-nine".