202222222009 has 2 divisors, whose sum is σ = 202222222010. Its totient is φ = 202222222008.

The previous prime is 202222221967. The next prime is 202222222021. The reversal of 202222222009 is 900222222202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146654532025 + 55567689984 = 382955^2 + 235728^2 .

It is a cyclic number.

It is not a de Polignac number, because 202222222009 - 2¹⁵ = 202222189241 is a prime.

It is not a weakly prime, because it can be changed into another prime (202222222409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101111111004 + 101111111005.

It is an arithmetic number, because the mean of its divisors is an integer number (101111111005).

Almost surely, 2^202222222009 is an apocalyptic number.

It is an amenable number.

202222222009 is a deficient number, since it is larger than the sum of its proper divisors (1).

202222222009 is an equidigital number, since it uses as much as digits as its factorization.

202222222009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 202222222009 in words is "two hundred two billion, two hundred twenty-two million, two hundred twenty-two thousand, nine".