1222822 has 4 divisors (see below), whose sum is σ = 1834236. Its totient is φ = 611410.

The previous prime is 1222811. The next prime is 1222829. The reversal of 1222822 is 2282221.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1222822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305704 + ... + 305707.

It is an arithmetic number, because the mean of its divisors is an integer number (458559).

2^1222822 is an apocalyptic number.

1222822 is a deficient number, since it is larger than the sum of its proper divisors (611414).

1222822 is an equidigital number, since it uses as much as digits as its factorization.

1222822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611413.

The product of its digits is 256, while the sum is 19.

The square root of 1222822 is about 1105.8128232210. The cubic root of 1222822 is about 106.9352973018.

The spelling of 1222822 in words is "one million, two hundred twenty-two thousand, eight hundred twenty-two".