12008872225 has 81 divisors (see below), whose sum is σ = 18077963193. Its totient is φ = 7890120000.

The previous prime is 12008872159. The next prime is 12008872231. The reversal of 12008872225 is 52227880021.

It is a happy number.

The square root of 12008872225 is 109585.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2217373921 + 9791498304 = 47089^2 + 98952^2 .

It is not a de Polignac number, because 12008872225 - 2¹⁷ = 12008741153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 118899675 + ... + 118899775.

Almost surely, 2^12008872225 is an apocalyptic number.

12008872225 is the 109585-th square number.

12008872225 is the 54793-rd centered octagonal number.

It is an amenable number.

12008872225 is a deficient number, since it is larger than the sum of its proper divisors (6069090968).

12008872225 is an equidigital number, since it uses as much as digits as its factorization.

12008872225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The spelling of 12008872225 in words is "twelve billion, eight million, eight hundred seventy-two thousand, two hundred twenty-five".