2225209009 has 2 divisors, whose sum is σ = 2225209010. Its totient is φ = 2225209008.

The previous prime is 2225208983. The next prime is 2225209027. The reversal of 2225209009 is 9009025222.

It is a happy number.

2225209009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2043040000 + 182169009 = 45200^2 + 13497^2 .

It is a cyclic number.

It is not a de Polignac number, because 2225209009 - 2⁵ = 2225208977 is a prime.

It is not a weakly prime, because it can be changed into another prime (2225209039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1112604504 + 1112604505.

It is an arithmetic number, because the mean of its divisors is an integer number (1112604505).

Almost surely, 2^2225209009 is an apocalyptic number.

It is an amenable number.

2225209009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2225209009 is an equidigital number, since it uses as much as digits as its factorization.

2225209009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 2225209009 is about 47172.1210992255. The cubic root of 2225209009 is about 1305.5402623995.

The spelling of 2225209009 in words is "two billion, two hundred twenty-five million, two hundred nine thousand, nine".