1120228420 has 12 divisors (see below), whose sum is σ = 2352479724. Its totient is φ = 448091360.

The previous prime is 1120228411. The next prime is 1120228427. The reversal of 1120228420 is 248220211.

It can be written as a sum of positive squares in 2 ways, for example, as 349166596 + 771061824 = 18686^2 + 27768^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1120228391 and 1120228400.

It is not an unprimeable number, because it can be changed into a prime (1120228427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28005691 + ... + 28005730.

It is an arithmetic number, because the mean of its divisors is an integer number (196039977).

Almost surely, 2^1120228420 is an apocalyptic number.

1120228420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120228420 is an abundant number, since it is smaller than the sum of its proper divisors (1232251304).

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

1120228420 is a wasteful number, since it uses less digits than its factorization.

1120228420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56011430 (or 56011428 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 1120228420 is about 33469.8135638668. The cubic root of 1120228420 is about 1038.5694149464.

Adding to 1120228420 its reverse (248220211), we get a palindrome (1368448631).

The spelling of 1120228420 in words is "one billion, one hundred twenty million, two hundred twenty-eight thousand, four hundred twenty".