1322120 has 16 divisors (see below), whose sum is σ = 2974860. Its totient is φ = 528832.

The previous prime is 1322117. The next prime is 1322129. The reversal of 1322120 is 212231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1304164 + 17956 = 1142^2 + 134^2 .

It is not an unprimeable number, because it can be changed into a prime (1322129) 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, 16487 + ... + 16566.

2^1322120 is an apocalyptic number.

1322120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322120 is an abundant number, since it is smaller than the sum of its proper divisors (1652740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1322120 is a wasteful number, since it uses less digits than its factorization.

1322120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33064 (or 33060 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1322120 is about 1149.8347707388. The cubic root of 1322120 is about 109.7548258490.

Adding to 1322120 its reverse (212231), we get a palindrome (1534351).

The spelling of 1322120 in words is "one million, three hundred twenty-two thousand, one hundred twenty".