10012220209 has 2 divisors, whose sum is σ = 10012220210. Its totient is φ = 10012220208.

The previous prime is 10012220203. The next prime is 10012220263. The reversal of 10012220209 is 90202221001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7739600625 + 2272619584 = 87975^2 + 47672^2 .

It is a cyclic number.

It is not a de Polignac number, because 10012220209 - 2³ = 10012220201 is a prime.

It is not a weakly prime, because it can be changed into another prime (10012220201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006110104 + 5006110105.

It is an arithmetic number, because the mean of its divisors is an integer number (5006110105).

Almost surely, 2^10012220209 is an apocalyptic number.

It is an amenable number.

10012220209 is a deficient number, since it is larger than the sum of its proper divisors (1).

10012220209 is an equidigital number, since it uses as much as digits as its factorization.

10012220209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 10012220209 in words is "ten billion, twelve million, two hundred twenty thousand, two hundred nine".