1122532420 has 12 divisors (see below), whose sum is σ = 2357318124. Its totient is φ = 449012960.

The previous prime is 1122532393. The next prime is 1122532459. The reversal of 1122532420 is 242352211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 478996996 + 643535424 = 21886^2 + 25368^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1122532391 and 1122532400.

It is an unprimeable number.

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, 28063291 + ... + 28063330.

It is an arithmetic number, because the mean of its divisors is an integer number (196443177).

Almost surely, 2^1122532420 is an apocalyptic number.

1122532420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122532420 is an abundant number, since it is smaller than the sum of its proper divisors (1234785704).

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

1122532420 is a wasteful number, since it uses less digits than its factorization.

1122532420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56126630 (or 56126628 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1122532420 is about 33504.2149587183. The cubic root of 1122532420 is about 1039.2809440343.

Adding to 1122532420 its reverse (242352211), we get a palindrome (1364884631).

The spelling of 1122532420 in words is "one billion, one hundred twenty-two million, five hundred thirty-two thousand, four hundred twenty".