212000099 has 2 divisors, whose sum is σ = 212000100. Its totient is φ = 212000098.

The previous prime is 212000057. The next prime is 212000101. The reversal of 212000099 is 990000212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212000099 - 2²⁰ = 210951523 is a prime.

Together with 212000101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212000029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106000049 + 106000050.

It is an arithmetic number, because the mean of its divisors is an integer number (106000050).

Almost surely, 2^212000099 is an apocalyptic number.

212000099 is a deficient number, since it is larger than the sum of its proper divisors (1).

212000099 is an equidigital number, since it uses as much as digits as its factorization.

212000099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 212000099 is about 14560.2231782346. The cubic root of 212000099 is about 596.2732885905.

The spelling of 212000099 in words is "two hundred twelve million, ninety-nine", and thus it is an aban number.