1222105 has 8 divisors (see below), whose sum is σ = 1530432. Its totient is φ = 935088.

The previous prime is 1222097. The next prime is 1222129. The reversal of 1222105 is 5012221.

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

It is not a de Polignac number, because 1222105 - 2³ = 1222097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5199 + ... + 5428.

It is an arithmetic number, because the mean of its divisors is an integer number (191304).

2^1222105 is an apocalyptic number.

It is an amenable number.

1222105 is a deficient number, since it is larger than the sum of its proper divisors (308327).

1222105 is a wasteful number, since it uses less digits than its factorization.

1222105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10655.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1222105 is about 1105.4885797691. The cubic root of 1222105 is about 106.9143927606.

Adding to 1222105 its reverse (5012221), we get a palindrome (6234326).

The spelling of 1222105 in words is "one million, two hundred twenty-two thousand, one hundred five".