2205217 has 8 divisors (see below), whose sum is σ = 2630016. Its totient is φ = 1807872.

The previous prime is 2205199. The next prime is 2205233. The reversal of 2205217 is 7125022.

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 2205217 - 2¹¹ = 2203169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2205194 and 2205203.

It is not an unprimeable number, because it can be changed into a prime (2205017) 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, 6688 + ... + 7009.

It is an arithmetic number, because the mean of its divisors is an integer number (328752).

2^2205217 is an apocalyptic number.

It is an amenable number.

2205217 is a deficient number, since it is larger than the sum of its proper divisors (424799).

2205217 is a wasteful number, since it uses less digits than its factorization.

2205217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13727.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2205217 is about 1484.9973063949. The cubic root of 2205217 is about 130.1618693708.

The spelling of 2205217 in words is "two million, two hundred five thousand, two hundred seventeen".