2221106 has 12 divisors (see below), whose sum is σ = 3397758. Its totient is φ = 1088832.

The previous prime is 2221097. The next prime is 2221111. The reversal of 2221106 is 6011222.

It can be written as a sum of positive squares in only one way, i.e., 1934881 + 286225 = 1391^2 + 535^2 .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20705 + ... + 20811.

2^2221106 is an apocalyptic number.

2221106 is a deficient number, since it is larger than the sum of its proper divisors (1176652).

2221106 is an equidigital number, since it uses as much as digits as its factorization.

2221106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2221106 is about 1490.3375456587. The cubic root of 2221106 is about 130.4737350683.

Adding to 2221106 its reverse (6011222), we get a palindrome (8232328).

The spelling of 2221106 in words is "two million, two hundred twenty-one thousand, one hundred six".