2161122 has 8 divisors (see below), whose sum is σ = 4322256. Its totient is φ = 720372.

The previous prime is 2161121. The next prime is 2161127. The reversal of 2161122 is 2211612.

2161122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

2161122 is an admirable number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2161121) 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 3 ways as a sum of consecutive naturals, for example, 180088 + ... + 180099.

It is an arithmetic number, because the mean of its divisors is an integer number (540282).

2^2161122 is an apocalyptic number.

2161122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2161122 is a wasteful number, since it uses less digits than its factorization.

2161122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360192.

The product of its digits is 48, while the sum is 15.

The square root of 2161122 is about 1470.0755082648. The cubic root of 2161122 is about 129.2884597102.

Adding to 2161122 its reverse (2211612), we get a palindrome (4372734).

The spelling of 2161122 in words is "two million, one hundred sixty-one thousand, one hundred twenty-two".