2186122 has 4 divisors (see below), whose sum is σ = 3279186. Its totient is φ = 1093060.

The previous prime is 2186113. The next prime is 2186141. The reversal of 2186122 is 2216812.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1515361 + 670761 = 1231^2 + 819^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2186093 and 2186102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 546529 + ... + 546532.

2^2186122 is an apocalyptic number.

2186122 is a deficient number, since it is larger than the sum of its proper divisors (1093064).

2186122 is a wasteful number, since it uses less digits than its factorization.

2186122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093063.

The product of its digits is 384, while the sum is 22.

The square root of 2186122 is about 1478.5540233620. The cubic root of 2186122 is about 129.7850886992.

The spelling of 2186122 in words is "two million, one hundred eighty-six thousand, one hundred twenty-two".