202012002209 has 2 divisors, whose sum is σ = 202012002210. Its totient is φ = 202012002208.

The previous prime is 202012002131. The next prime is 202012002211. The reversal of 202012002209 is 902200210202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106506280609 + 95505721600 = 326353^2 + 309040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202012002209 is a prime.

Together with 202012002211, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (202012002239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101006001104 + 101006001105.

It is an arithmetic number, because the mean of its divisors is an integer number (101006001105).

Almost surely, 2^202012002209 is an apocalyptic number.

It is an amenable number.

202012002209 is a deficient number, since it is larger than the sum of its proper divisors (1).

202012002209 is an equidigital number, since it uses as much as digits as its factorization.

202012002209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 202012002209 in words is "two hundred two billion, twelve million, two thousand, two hundred nine".