1286222 has 8 divisors (see below), whose sum is σ = 2204976. Its totient is φ = 551232.

The previous prime is 1286209. The next prime is 1286227. The reversal of 1286222 is 2226821.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45923 + ... + 45950.

It is an arithmetic number, because the mean of its divisors is an integer number (275622).

2^1286222 is an apocalyptic number.

1286222 is a deficient number, since it is larger than the sum of its proper divisors (918754).

1286222 is an equidigital number, since it uses as much as digits as its factorization.

1286222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91882.

The product of its digits is 768, while the sum is 23.

The square root of 1286222 is about 1134.1172778862. The cubic root of 1286222 is about 108.7523485642.

The spelling of 1286222 in words is "one million, two hundred eighty-six thousand, two hundred twenty-two".