2216211 has 8 divisors (see below), whose sum is σ = 3083520. Its totient is φ = 1413192.

The previous prime is 2216197. The next prime is 2216213. The reversal of 2216211 is 1126122.

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

It is not a de Polignac number, because 2216211 - 2⁷ = 2216083 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2216213) 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, 15991 + ... + 16128.

It is an arithmetic number, because the mean of its divisors is an integer number (385440).

2^2216211 is an apocalyptic number.

2216211 is a deficient number, since it is larger than the sum of its proper divisors (867309).

2216211 is a wasteful number, since it uses less digits than its factorization.

2216211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32145.

The product of its digits is 48, while the sum is 15.

The square root of 2216211 is about 1488.6943944275. The cubic root of 2216211 is about 130.3778160852.

The spelling of 2216211 in words is "two million, two hundred sixteen thousand, two hundred eleven".