1227241128 has 32 divisors (see below), whose sum is σ = 3075055200. Its totient is φ = 408153408.

The previous prime is 1227241121. The next prime is 1227241163. The reversal of 1227241128 is 8211427221.

It is a super-2 number, since 2×1227241128² = 3012241572509424768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1227241095 and 1227241104.

It is not an unprimeable number, because it can be changed into a prime (1227241121) 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, 47083 + ... + 68346.

It is an arithmetic number, because the mean of its divisors is an integer number (96095475).

Almost surely, 2^1227241128 is an apocalyptic number.

It is an amenable number.

1227241128 is an abundant number, since it is smaller than the sum of its proper divisors (1847814072).

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

1227241128 is a wasteful number, since it uses less digits than its factorization.

1227241128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115881 (or 115877 counting only the distinct ones).

The product of its digits is 3584, while the sum is 30.

The square root of 1227241128 is about 35032.0014843571. The cubic root of 1227241128 is about 1070.6395943135.

Adding to 1227241128 its reverse (8211427221), we get a palindrome (9438668349).

The spelling of 1227241128 in words is "one billion, two hundred twenty-seven million, two hundred forty-one thousand, one hundred twenty-eight".