202010210009 has 4 divisors (see below), whose sum is σ = 202013982480. Its totient is φ = 202006437540.

The previous prime is 202010209979. The next prime is 202010210047. The reversal of 202010210009 is 900012010202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202010210009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202010810009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1804739 + ... + 1913400.

It is an arithmetic number, because the mean of its divisors is an integer number (50503495620).

Almost surely, 2^202010210009 is an apocalyptic number.

It is an amenable number.

202010210009 is a deficient number, since it is larger than the sum of its proper divisors (3772471).

202010210009 is an equidigital number, since it uses as much as digits as its factorization.

202010210009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3772470.

The product of its (nonzero) digits is 72, while the sum is 17.

The spelling of 202010210009 in words is "two hundred two billion, ten million, two hundred ten thousand, nine".