2210210209 has 2 divisors, whose sum is σ = 2210210210. Its totient is φ = 2210210208.

The previous prime is 2210210201. The next prime is 2210210213. The reversal of 2210210209 is 9020120122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1428840000 + 781370209 = 37800^2 + 27953^2 .

It is a cyclic number.

It is not a de Polignac number, because 2210210209 - 2³ = 2210210201 is a prime.

It is not a weakly prime, because it can be changed into another prime (2210210201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105105104 + 1105105105.

It is an arithmetic number, because the mean of its divisors is an integer number (1105105105).

Almost surely, 2^2210210209 is an apocalyptic number.

It is an amenable number.

2210210209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2210210209 is an equidigital number, since it uses as much as digits as its factorization.

2210210209 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 square root of 2210210209 is about 47012.8728009680. The cubic root of 2210210209 is about 1302.6003590011.

The spelling of 2210210209 in words is "two billion, two hundred ten million, two hundred ten thousand, two hundred nine".