222022009 has 4 divisors (see below), whose sum is σ = 242205840. Its totient is φ = 201838180.

The previous prime is 222022001. The next prime is 222022019. The reversal of 222022009 is 900220222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222022009 - 2³ = 222022001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222022001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10091899 + ... + 10091920.

It is an arithmetic number, because the mean of its divisors is an integer number (60551460).

Almost surely, 2^222022009 is an apocalyptic number.

It is an amenable number.

222022009 is a deficient number, since it is larger than the sum of its proper divisors (20183831).

222022009 is a wasteful number, since it uses less digits than its factorization.

222022009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20183830.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 222022009 is about 14900.4029811277. The cubic root of 222022009 is about 605.5249038356.

The spelling of 222022009 in words is "two hundred twenty-two million, twenty-two thousand, nine".