212310000209 has 16 divisors (see below), whose sum is σ = 217329716736. Its totient is φ = 207311769600.

The previous prime is 212310000193. The next prime is 212310000211. The reversal of 212310000209 is 902000013212.

It is a cyclic number.

It is not a de Polignac number, because 212310000209 - 2⁴ = 212310000193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212310000229) 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 in 15 ways as a sum of consecutive naturals, for example, 73538564 + ... + 73541450.

It is an arithmetic number, because the mean of its divisors is an integer number (13583107296).

Almost surely, 2^212310000209 is an apocalyptic number.

It is an amenable number.

212310000209 is a deficient number, since it is larger than the sum of its proper divisors (5019716527).

212310000209 is a wasteful number, since it uses less digits than its factorization.

212310000209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6016.

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 212310000209 in words is "two hundred twelve billion, three hundred ten million, two hundred nine", and thus it is an aban number.