212099 has 2 divisors, whose sum is σ = 212100. Its totient is φ = 212098.

The previous prime is 212081. The next prime is 212117. The reversal of 212099 is 990212.

212099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (212081) and next prime (212117).

It is a cyclic number.

It is not a de Polignac number, because 212099 - 2¹² = 208003 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106049 + 106050.

It is an arithmetic number, because the mean of its divisors is an integer number (106050).

2²¹²⁰⁹⁹ is an apocalyptic number.

212099 is a deficient number, since it is larger than the sum of its proper divisors (1).

212099 is an equidigital number, since it uses as much as digits as its factorization.

212099 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 212099 is about 460.5420719109. The cubic root of 212099 is about 59.6365997441.

The spelling of 212099 in words is "two hundred twelve thousand, ninety-nine".