120222209 has 8 divisors (see below), whose sum is σ = 123800712. Its totient is φ = 116674560.

The previous prime is 120222203. The next prime is 120222229. The reversal of 120222209 is 902222021.

It can be written as a sum of positive squares in 4 ways, for example, as 10705984 + 109516225 = 3272^2 + 10465^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120222209 - 2⁸ = 120221953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120222203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317 + ... + 15509.

It is an arithmetic number, because the mean of its divisors is an integer number (15475089).

Almost surely, 2^120222209 is an apocalyptic number.

It is an amenable number.

120222209 is a deficient number, since it is larger than the sum of its proper divisors (3578503).

120222209 is a wasteful number, since it uses less digits than its factorization.

120222209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15427.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 120222209 is about 10964.5888659813. The cubic root of 120222209 is about 493.5466796472.

The spelling of 120222209 in words is "one hundred twenty million, two hundred twenty-two thousand, two hundred nine".