1122122928 has 40 divisors (see below), whose sum is σ = 2927531376. Its totient is φ = 370336000.

The previous prime is 1122122923. The next prime is 1122122929. The reversal of 1122122928 is 8292212211.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1122122895 and 1122122904.

It is not an unprimeable number, because it can be changed into a prime (1122122923) 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 7 ways as a sum of consecutive naturals, for example, 110883 + ... + 120578.

Almost surely, 2^1122122928 is an apocalyptic number.

It is an amenable number.

1122122928 is an abundant number, since it is smaller than the sum of its proper divisors (1805408448).

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

1122122928 is a wasteful number, since it uses less digits than its factorization.

1122122928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231573 (or 231567 counting only the distinct ones).

The product of its digits is 2304, while the sum is 30.

The square root of 1122122928 is about 33498.1033492943. The cubic root of 1122122928 is about 1039.1545545170.

The spelling of 1122122928 in words is "one billion, one hundred twenty-two million, one hundred twenty-two thousand, nine hundred twenty-eight".