2209122 has 48 divisors (see below), whose sum is σ = 5121792. Its totient is φ = 686880.

The previous prime is 2209117. The next prime is 2209169. The reversal of 2209122 is 2219022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2209095 and 2209104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20593 + ... + 20699.

It is an arithmetic number, because the mean of its divisors is an integer number (106704).

2^2209122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2209122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2560896).

2209122 is an abundant number, since it is smaller than the sum of its proper divisors (2912670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2209122 is a wasteful number, since it uses less digits than its factorization.

2209122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2209122 is about 1486.3115420396. The cubic root of 2209122 is about 130.2386543119.

The spelling of 2209122 in words is "two million, two hundred nine thousand, one hundred twenty-two".