1109222 has 4 divisors (see below), whose sum is σ = 1663836. Its totient is φ = 554610.

The previous prime is 1109219. The next prime is 1109231. The reversal of 1109222 is 2229011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2229011 = 1439 ⋅1549.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1109222.

It is a congruent 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 as a sum of consecutive naturals, namely, 277304 + ... + 277307.

It is an arithmetic number, because the mean of its divisors is an integer number (415959).

2^1109222 is an apocalyptic number.

1109222 is a deficient number, since it is larger than the sum of its proper divisors (554614).

1109222 is an equidigital number, since it uses as much as digits as its factorization.

1109222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554613.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1109222 is about 1053.1960881052. The cubic root of 1109222 is about 103.5156844924.

It can be divided in two parts, 1109 and 222, that added together give a palindrome (1331).

The spelling of 1109222 in words is "one million, one hundred nine thousand, two hundred twenty-two".