10212020010209 has 4 divisors (see below), whose sum is σ = 10212031569600. Its totient is φ = 10212008450820.

The previous prime is 10212020010193. The next prime is 10212020010223. The reversal of 10212020010209 is 90201002021201.

It is a happy number.

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 not a de Polignac number, because 10212020010209 - 2⁴ = 10212020010193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10212020010289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4333997 + ... + 6261594.

It is an arithmetic number, because the mean of its divisors is an integer number (2553007892400).

Almost surely, 2^{10212020010209} is an apocalyptic number.

It is an amenable number.

10212020010209 is a deficient number, since it is larger than the sum of its proper divisors (11559391).

10212020010209 is an equidigital number, since it uses as much as digits as its factorization.

10212020010209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11559390.

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

The spelling of 10212020010209 in words is "ten trillion, two hundred twelve billion, twenty million, ten thousand, two hundred nine".