2217106 has 16 divisors (see below), whose sum is σ = 3582360. Its totient is φ = 1025280.

The previous prime is 2217101. The next prime is 2217107. The reversal of 2217106 is 6017122.

2217106 is nontrivially palindromic in base 11.

It can be written as a sum of positive squares in 4 ways, for example, as 1585081 + 632025 = 1259^2 + 795^2 .

It is not an unprimeable number, because it can be changed into a prime (2217101) 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, 1540 + ... + 2608.

2^2217106 is an apocalyptic number.

2217106 is a deficient number, since it is larger than the sum of its proper divisors (1365254).

2217106 is a wasteful number, since it uses less digits than its factorization.

2217106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 2217106 is about 1488.9949630539. The cubic root of 2217106 is about 130.3953644205.

The spelling of 2217106 in words is "two million, two hundred seventeen thousand, one hundred six".