11221706 has 16 divisors (see below), whose sum is σ = 17254728. Its totient is φ = 5472000.

The previous prime is 11221697. The next prime is 11221709. The reversal of 11221706 is 60712211.

It can be written as a sum of positive squares in 4 ways, for example, as 9247681 + 1974025 = 3041^2 + 1405^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11221709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14366 + ... + 15126.

Almost surely, 2^11221706 is an apocalyptic number.

11221706 is a deficient number, since it is larger than the sum of its proper divisors (6033022).

11221706 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (11221705) it forms an eRAP, since the sums of their prime factors are consecutive (936 and 937).

11221706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 11221706 is about 3349.8814904411. The cubic root of 11221706 is about 223.8822324187.

Adding to 11221706 its reverse (60712211), we get a palindrome (71933917).

The spelling of 11221706 in words is "eleven million, two hundred twenty-one thousand, seven hundred six".