212100012200009 has 8 divisors (see below), whose sum is σ = 212112398937600. Its totient is φ = 212087625889536.

The previous prime is 212100012199993. The next prime is 212100012200023. The reversal of 212100012200009 is 900002210001212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212100012200009 - 2⁴ = 212100012199993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212100012200099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1609471529 + ... + 1609603305.

It is an arithmetic number, because the mean of its divisors is an integer number (26514049867200).

Almost surely, 2^{212100012200009} is an apocalyptic number.

It is an amenable number.

212100012200009 is a deficient number, since it is larger than the sum of its proper divisors (12386737591).

212100012200009 is a wasteful number, since it uses less digits than its factorization.

212100012200009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213559.

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

The spelling of 212100012200009 in words is "two hundred twelve trillion, one hundred billion, twelve million, two hundred thousand, nine".