12225788450 has 54 divisors (see below), whose sum is σ = 24028995249. Its totient is φ = 4627301040.

The previous prime is 12225788447. The next prime is 12225788467. The reversal of 12225788450 is 5488752221.

12225788450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11981272681 + 244515769 = 109459^2 + 15637^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=78185.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 14854739 + ... + 14855561.

Almost surely, 2^12225788450 is an apocalyptic number.

12225788450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12225788450 is a deficient number, since it is larger than the sum of its proper divisors (11803206799).

12225788450 is an frugal number, since it uses more digits than its factorization.

12225788450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 44.

The spelling of 12225788450 in words is "twelve billion, two hundred twenty-five million, seven hundred eighty-eight thousand, four hundred fifty".