1321122 has 32 divisors (see below), whose sum is σ = 2965824. Its totient is φ = 388800.

The previous prime is 1321109. The next prime is 1321139. The reversal of 1321122 is 2211231.

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 = 1321098 and 1321107.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2172 + ... + 2712.

It is an arithmetic number, because the mean of its divisors is an integer number (92682).

2^1321122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1321122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1482912).

1321122 is an abundant number, since it is smaller than the sum of its proper divisors (1644702).

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

1321122 is a wasteful number, since it uses less digits than its factorization.

1321122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594.

The product of its digits is 24, while the sum is 12.

The square root of 1321122 is about 1149.4007134155. The cubic root of 1321122 is about 109.7272028171.

Adding to 1321122 its reverse (2211231), we get a palindrome (3532353).

It can be divided in two parts, 1 and 321122, that added together give a palindrome (321123).

The spelling of 1321122 in words is "one million, three hundred twenty-one thousand, one hundred twenty-two".