1122722 has 8 divisors (see below), whose sum is σ = 1757376. Its totient is φ = 536932.

The previous prime is 1122721. The next prime is 1122739. The reversal of 1122722 is 2272211.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1122722.

It is not an unprimeable number, because it can be changed into a prime (1122721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12158 + ... + 12249.

It is an arithmetic number, because the mean of its divisors is an integer number (219672).

2^1122722 is an apocalyptic number.

1122722 is a deficient number, since it is larger than the sum of its proper divisors (634654).

1122722 is a wasteful number, since it uses less digits than its factorization.

1122722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24432.

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

The square root of 1122722 is about 1059.5857681188. The cubic root of 1122722 is about 103.9339447405.

Adding to 1122722 its reverse (2272211), we get a palindrome (3394933).

It can be divided in two parts, 11 and 22722, that multiplied together give a palindrome (249942).

The spelling of 1122722 in words is "one million, one hundred twenty-two thousand, seven hundred twenty-two".