2122289 has 8 divisors (see below), whose sum is σ = 2325120. Its totient is φ = 1925136.

The previous prime is 2122277. The next prime is 2122303. The reversal of 2122289 is 9822212.

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 2122289 - 2¹⁶ = 2056753 is a prime.

It is a super-2 number, since 2×2122289² = 9008221199042, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2122259) 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 7 ways as a sum of consecutive naturals, for example, 617 + ... + 2150.

It is an arithmetic number, because the mean of its divisors is an integer number (290640).

2^2122289 is an apocalyptic number.

It is an amenable number.

2122289 is a deficient number, since it is larger than the sum of its proper divisors (202831).

2122289 is a wasteful number, since it uses less digits than its factorization.

2122289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2839.

The product of its digits is 1152, while the sum is 26.

The square root of 2122289 is about 1456.8078116210. The cubic root of 2122289 is about 128.5093837616.

The spelling of 2122289 in words is "two million, one hundred twenty-two thousand, two hundred eighty-nine".