2122109 has 8 divisors (see below), whose sum is σ = 2338752. Its totient is φ = 1909440.

The previous prime is 2122103. The next prime is 2122123. The reversal of 2122109 is 9012212.

2122109 = T₃₄₂ + T₃₄₃ + ... + T₃₇₄.

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

It is a cyclic number.

It is not a de Polignac number, because 2122109 - 2⁸ = 2121853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197 + ... + 2069.

It is an arithmetic number, because the mean of its divisors is an integer number (292344).

2^2122109 is an apocalyptic number.

It is an amenable number.

2122109 is a deficient number, since it is larger than the sum of its proper divisors (216643).

2122109 is a wasteful number, since it uses less digits than its factorization.

2122109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2122109 is about 1456.7460314001. The cubic root of 2122109 is about 128.5057505236.

The spelling of 2122109 in words is "two million, one hundred twenty-two thousand, one hundred nine".