212202110009 has 4 divisors (see below), whose sum is σ = 212308585716. Its totient is φ = 212095634304.

The previous prime is 212202109961. The next prime is 212202110051. The reversal of 212202110009 is 900011202212.

It is a happy number.

212202110009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62740230400 + 149461879609 = 250480^2 + 386603^2 .

It is a cyclic number.

It is not a de Polignac number, because 212202110009 - 2²⁰ = 212201061433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212202110059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53234864 + ... + 53238849.

It is an arithmetic number, because the mean of its divisors is an integer number (53077146429).

Almost surely, 2^212202110009 is an apocalyptic number.

It is an amenable number.

212202110009 is a deficient number, since it is larger than the sum of its proper divisors (106475707).

212202110009 is a wasteful number, since it uses less digits than its factorization.

212202110009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106475706.

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

The spelling of 212202110009 in words is "two hundred twelve billion, two hundred two million, one hundred ten thousand, nine".