2122117 has 4 divisors (see below), whose sum is σ = 2125440. Its totient is φ = 2118796.

The previous prime is 2122103. The next prime is 2122123. The reversal of 2122117 is 7112212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2122117 - 2⁷ = 2121989 is a prime.

It is an Ulam number.

It is a Duffinian number.

2122117 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2122117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122817) by changing a digit.

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, 367 + ... + 2092.

It is an arithmetic number, because the mean of its divisors is an integer number (531360).

2^2122117 is an apocalyptic number.

It is an amenable number.

2122117 is a deficient number, since it is larger than the sum of its proper divisors (3323).

2122117 is an equidigital number, since it uses as much as digits as its factorization.

2122117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322.

The product of its digits is 56, while the sum is 16.

The square root of 2122117 is about 1456.7487772434. The cubic root of 2122117 is about 128.5059120052.

Adding to 2122117 its reverse (7112212), we get a palindrome (9234329).

The spelling of 2122117 in words is "two million, one hundred twenty-two thousand, one hundred seventeen".