1122231440 has 60 divisors (see below), whose sum is σ = 2867975292. Its totient is φ = 408080640.

The previous prime is 1122231427. The next prime is 1122231449. The reversal of 1122231440 is 441322211.

It can be written as a sum of positive squares in 2 ways, for example, as 245360896 + 876870544 = 15664^2 + 29612^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1122231449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48287 + ... + 67646.

Almost surely, 2^1122231440 is an apocalyptic number.

1122231440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122231440 is an abundant number, since it is smaller than the sum of its proper divisors (1745743852).

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

1122231440 is a wasteful number, since it uses less digits than its factorization.

1122231440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115968 (or 115951 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1122231440 is about 33499.7229839293. The cubic root of 1122231440 is about 1039.1880496899.

Adding to 1122231440 its reverse (441322211), we get a palindrome (1563553651).

The spelling of 1122231440 in words is "one billion, one hundred twenty-two million, two hundred thirty-one thousand, four hundred forty".