1121722 has 16 divisors (see below), whose sum is σ = 2024640. Its totient is φ = 455328.

The previous prime is 1121707. The next prime is 1121723. The reversal of 1121722 is 2271211.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1121696 and 1121705.

It is not an unprimeable number, because it can be changed into a prime (1121723) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1843 + ... + 2374.

It is an arithmetic number, because the mean of its divisors is an integer number (126540).

2^1121722 is an apocalyptic number.

1121722 is a deficient number, since it is larger than the sum of its proper divisors (902918).

1121722 is a wasteful number, since it uses less digits than its factorization.

1121722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4245.

The product of its digits is 56, while the sum is 16.

The square root of 1121722 is about 1059.1137804788. The cubic root of 1121722 is about 103.9030778480.

Adding to 1121722 its reverse (2271211), we get a palindrome (3392933).

The spelling of 1121722 in words is "one million, one hundred twenty-one thousand, seven hundred twenty-two".