2180122 has 8 divisors (see below), whose sum is σ = 3737376. Its totient is φ = 934332.

The previous prime is 2180119. The next prime is 2180141. The reversal of 2180122 is 2210812.

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

It is a junction number, because it is equal to n+sod(n) for n = 2180096 and 2180105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77848 + ... + 77875.

It is an arithmetic number, because the mean of its divisors is an integer number (467172).

2^2180122 is an apocalyptic number.

2180122 is a deficient number, since it is larger than the sum of its proper divisors (1557254).

2180122 is a wasteful number, since it uses less digits than its factorization.

2180122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155732.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 2180122 is about 1476.5236198585. The cubic root of 2180122 is about 129.6662444576. Note that the first 3 decimals are identical.

Adding to 2180122 its reverse (2210812), we get a palindrome (4390934).

The spelling of 2180122 in words is "two million, one hundred eighty thousand, one hundred twenty-two".