128224356712 has 16 divisors (see below), whose sum is σ = 246011847840. Its totient is φ = 62621197296.

The previous prime is 128224356697. The next prime is 128224356731. The reversal of 128224356712 is 217653422821.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186372268 + ... + 186372955.

It is an arithmetic number, because the mean of its divisors is an integer number (15375740490).

Almost surely, 2^128224356712 is an apocalyptic number.

It is an amenable number.

128224356712 is a deficient number, since it is larger than the sum of its proper divisors (117787491128).

128224356712 is a wasteful number, since it uses less digits than its factorization.

128224356712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372745272 (or 372745268 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The spelling of 128224356712 in words is "one hundred twenty-eight billion, two hundred twenty-four million, three hundred fifty-six thousand, seven hundred twelve".