12224557000 has 32 divisors (see below), whose sum is σ = 28605465720. Its totient is φ = 4889822400.

The previous prime is 12224556941. The next prime is 12224557031. The reversal of 12224557000 is 75542221.

It can be written as a sum of positive squares in 4 ways, for example, as 7360610436 + 4863946564 = 85794^2 + 69742^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12224557000.

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, 6111279 + ... + 6113278.

Almost surely, 2^12224557000 is an apocalyptic number.

12224557000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12224557000 is an abundant number, since it is smaller than the sum of its proper divisors (16380908720).

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

12224557000 is a wasteful number, since it uses less digits than its factorization.

12224557000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12224578 (or 12224564 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The spelling of 12224557000 in words is "twelve billion, two hundred twenty-four million, five hundred fifty-seven thousand".