212022110209 has 16 divisors (see below), whose sum is σ = 266275811200. Its totient is φ = 167753754000.

The previous prime is 212022110203. The next prime is 212022110219. The reversal of 212022110209 is 902011220212.

It is not a de Polignac number, because 212022110209 - 2⁷ = 212022110081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212022110209.

It is not an unprimeable number, because it can be changed into a prime (212022110203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23770167 + ... + 23779084.

It is an arithmetic number, because the mean of its divisors is an integer number (16642238200).

Almost surely, 2^212022110209 is an apocalyptic number.

It is an amenable number.

212022110209 is a deficient number, since it is larger than the sum of its proper divisors (54253700991).

212022110209 is an equidigital number, since it uses as much as digits as its factorization.

212022110209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47549285 (or 47549271 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 212022110209 in words is "two hundred twelve billion, twenty-two million, one hundred ten thousand, two hundred nine".