1222165 has 8 divisors (see below), whose sum is σ = 1676160. Its totient is φ = 838032.

The previous prime is 1222159. The next prime is 1222171. The reversal of 1222165 is 5612221.

It is an interprime number because it is at equal distance from previous prime (1222159) and next prime (1222171).

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

It is a cyclic number.

It is not a de Polignac number, because 1222165 - 2³ = 1222157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17425 + ... + 17494.

It is an arithmetic number, because the mean of its divisors is an integer number (209520).

2^1222165 is an apocalyptic number.

It is an amenable number.

1222165 is a deficient number, since it is larger than the sum of its proper divisors (453995).

1222165 is an equidigital number, since it uses as much as digits as its factorization.

1222165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34931.

The product of its digits is 240, while the sum is 19.

The square root of 1222165 is about 1105.5157167585. The cubic root of 1222165 is about 106.9161424080.

Adding to 1222165 its reverse (5612221), we get a palindrome (6834386).

It can be divided in two parts, 122216 and 5, that added together give a palindrome (122221).

The spelling of 1222165 in words is "one million, two hundred twenty-two thousand, one hundred sixty-five".