122219209 has 8 divisors (see below), whose sum is σ = 139751360. Its totient is φ = 104705136.

The previous prime is 122219197. The next prime is 122219257. The reversal of 122219209 is 902912221.

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 122219209 - 2¹⁹ = 121694921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122219269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16507 + ... + 22735.

It is an arithmetic number, because the mean of its divisors is an integer number (17468920).

Almost surely, 2^122219209 is an apocalyptic number.

It is an amenable number.

122219209 is a deficient number, since it is larger than the sum of its proper divisors (17532151).

122219209 is an equidigital number, since it uses as much as digits as its factorization.

122219209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9039.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 122219209 is about 11055.2796889088. The cubic root of 122219209 is about 496.2644393432.

The spelling of 122219209 in words is "one hundred twenty-two million, two hundred nineteen thousand, two hundred nine".