2216109 has 8 divisors (see below), whose sum is σ = 3376960. Its totient is φ = 1266336.

The previous prime is 2216101. The next prime is 2216113. The reversal of 2216109 is 9016122.

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

It is not a de Polignac number, because 2216109 - 2³ = 2216101 is a prime.

It is a super-2 number, since 2×2216109² = 9822278199762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 105529 = 2216109 / (2 + 2 + 1 + 6 + 1 + 0 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216101) 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, 52744 + ... + 52785.

It is an arithmetic number, because the mean of its divisors is an integer number (422120).

2^2216109 is an apocalyptic number.

It is an amenable number.

2216109 is a deficient number, since it is larger than the sum of its proper divisors (1160851).

2216109 is a wasteful number, since it uses less digits than its factorization.

2216109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105539.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 2216109 is about 1488.6601358268. The cubic root of 2216109 is about 130.3758158633.

The spelling of 2216109 in words is "two million, two hundred sixteen thousand, one hundred nine".