1122020320 has 24 divisors (see below), whose sum is σ = 2650773384. Its totient is φ = 448808064.

The previous prime is 1122020239. The next prime is 1122020323. The reversal of 1122020320 is 230202211.

It is a self number, because there is not a number n which added to its sum of digits gives 1122020320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122020323) 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 3 ways as a sum of consecutive naturals, for example, 3506154 + ... + 3506473.

It is an arithmetic number, because the mean of its divisors is an integer number (110448891).

Almost surely, 2^1122020320 is an apocalyptic number.

1122020320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122020320 is an abundant number, since it is smaller than the sum of its proper divisors (1528753064).

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

1122020320 is an equidigital number, since it uses as much as digits as its factorization.

1122020320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7012642 (or 7012634 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1122020320 is about 33496.5717648836. The cubic root of 1122020320 is about 1039.1228797875.

Adding to 1122020320 its reverse (230202211), we get a palindrome (1352222531).

The spelling of 1122020320 in words is "one billion, one hundred twenty-two million, twenty thousand, three hundred twenty".