212210100002009 has 16 divisors (see below), whose sum is σ = 219254226624000. Its totient is φ = 205178419522560.

The previous prime is 212210100002003. The next prime is 212210100002023. The reversal of 212210100002009 is 900200001012212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212210100002009 - 2¹⁶ = 212210099936473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212210100002003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418035257 + ... + 418542585.

It is an arithmetic number, because the mean of its divisors is an integer number (13703389164000).

Almost surely, 2^{212210100002009} is an apocalyptic number.

It is an amenable number.

212210100002009 is a deficient number, since it is larger than the sum of its proper divisors (7044126621991).

212210100002009 is a wasteful number, since it uses less digits than its factorization.

212210100002009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519568.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 212210100002009 in words is "two hundred twelve trillion, two hundred ten billion, one hundred million, two thousand, nine".