120002209 has 4 divisors (see below), whose sum is σ = 123873280. Its totient is φ = 116131140.

The previous prime is 120002191. The next prime is 120002213. The reversal of 120002209 is 902200021.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 902200021 = 739 ⋅1220839.

It is a cyclic number.

It is not a de Polignac number, because 120002209 - 2⁵ = 120002177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120002192 and 120002201.

It is not an unprimeable number, because it can be changed into a prime (120002279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1935489 + ... + 1935550.

It is an arithmetic number, because the mean of its divisors is an integer number (30968320).

Almost surely, 2^120002209 is an apocalyptic number.

It is an amenable number.

120002209 is a deficient number, since it is larger than the sum of its proper divisors (3871071).

120002209 is an equidigital number, since it uses as much as digits as its factorization.

120002209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871070.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 120002209 is about 10954.5519762334. The cubic root of 120002209 is about 493.2454414378.

The spelling of 120002209 in words is "one hundred twenty million, two thousand, two hundred nine".