1122822 has 40 divisors (see below), whose sum is σ = 2613600. Its totient is φ = 359856.

The previous prime is 1122811. The next prime is 1122841. The reversal of 1122822 is 2282211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a d-powerful number, because it can be written as 1 + 1 + 2² + 2¹³ + 8³ + 2¹⁶ + 2²⁰ .

It is a junction number, because it is equal to n+sod(n) for n = 1122795 and 1122804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4579 + ... + 4817.

It is an arithmetic number, because the mean of its divisors is an integer number (65340).

2^1122822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1306800).

1122822 is an abundant number, since it is smaller than the sum of its proper divisors (1490778).

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

1122822 is a wasteful number, since it uses less digits than its factorization.

1122822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 273 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 1122822 is about 1059.6329553199. The cubic root of 1122822 is about 103.9370304215.

The spelling of 1122822 in words is "one million, one hundred twenty-two thousand, eight hundred twenty-two".