1122322240 has 84 divisors (see below), whose sum is σ = 2894062284. Its totient is φ = 414375936.

The previous prime is 1122322219. The next prime is 1122322247. The reversal of 1122322240 is 422232211.

It can be written as a sum of positive squares in 6 ways, for example, as 317124864 + 805197376 = 17808^2 + 28376^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122322247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43704 + ... + 64456.

Almost surely, 2^1122322240 is an apocalyptic number.

1122322240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122322240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1447031142).

1122322240 is an abundant number, since it is smaller than the sum of its proper divisors (1771740044).

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

1122322240 is a wasteful number, since it uses less digits than its factorization.

1122322240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20796 (or 20773 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1122322240 is about 33501.0781916045. The cubic root of 1122322240 is about 1039.2160759142.

Adding to 1122322240 its reverse (422232211), we get a palindrome (1544554451).

The spelling of 1122322240 in words is "one billion, one hundred twenty-two million, three hundred twenty-two thousand, two hundred forty".