9420222209 has 2 divisors, whose sum is σ = 9420222210. Its totient is φ = 9420222208.

The previous prime is 9420222193. The next prime is 9420222269. The reversal of 9420222209 is 9022220249.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6257284609 + 3162937600 = 79103^2 + 56240^2 .

It is a cyclic number.

It is not a de Polignac number, because 9420222209 - 2⁴ = 9420222193 is a prime.

It is not a weakly prime, because it can be changed into another prime (9420222269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4710111104 + 4710111105.

It is an arithmetic number, because the mean of its divisors is an integer number (4710111105).

Almost surely, 2^9420222209 is an apocalyptic number.

It is an amenable number.

9420222209 is a deficient number, since it is larger than the sum of its proper divisors (1).

9420222209 is an equidigital number, since it uses as much as digits as its factorization.

9420222209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 9420222209 is about 97057.8291999157. The cubic root of 9420222209 is about 2111.9666164739.

The spelling of 9420222209 in words is "nine billion, four hundred twenty million, two hundred twenty-two thousand, two hundred nine".