1172222 has 4 divisors (see below), whose sum is σ = 1758336. Its totient is φ = 586110.

The previous prime is 1172207. The next prime is 1172233. The reversal of 1172222 is 2222711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2222711 = 107 ⋅20773.

It is a self number, because there is not a number n which added to its sum of digits gives 1172222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 293054 + ... + 293057.

It is an arithmetic number, because the mean of its divisors is an integer number (439584).

2^1172222 is an apocalyptic number.

1172222 is a deficient number, since it is larger than the sum of its proper divisors (586114).

1172222 is an equidigital number, since it uses as much as digits as its factorization.

1172222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586113.

The product of its digits is 112, while the sum is 17.

The square root of 1172222 is about 1082.6920153026. The cubic root of 1172222 is about 105.4394882206.

Adding to 1172222 its reverse (2222711), we get a palindrome (3394933).

The spelling of 1172222 in words is "one million, one hundred seventy-two thousand, two hundred twenty-two".