851331223112 has 32 divisors (see below), whose sum is σ = 1640762681400. Its totient is φ = 413813804544.

The previous prime is 851331223109. The next prime is 851331223157. The reversal of 851331223112 is 211322133158.

It can be written as a sum of positive squares in 4 ways, for example, as 694978991716 + 156352231396 = 833654^2 + 395414^2 .

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 7 ways as a sum of consecutive naturals, for example, 852287 + ... + 1558542.

Almost surely, 2^851331223112 is an apocalyptic number.

It is an amenable number.

851331223112 is a deficient number, since it is larger than the sum of its proper divisors (789431458288).

851331223112 is a wasteful number, since it uses less digits than its factorization.

851331223112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412065 (or 2412061 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The spelling of 851331223112 in words is "eight hundred fifty-one billion, three hundred thirty-one million, two hundred twenty-three thousand, one hundred twelve".