12001025 has 12 divisors (see below), whose sum is σ = 14943612. Its totient is φ = 9560640.

The previous prime is 12001021. The next prime is 12001037. The reversal of 12001025 is 52010021.

12001025 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 6 ways, for example, as 1399489 + 10601536 = 1183^2 + 3256^2 .

It is not a de Polignac number, because 12001025 - 2² = 12001021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12000997 and 12001015.

It is not an unprimeable number, because it can be changed into a prime (12001021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6059 + ... + 7791.

It is an arithmetic number, because the mean of its divisors is an integer number (1245301).

Almost surely, 2^12001025 is an apocalyptic number.

It is an amenable number.

12001025 is a deficient number, since it is larger than the sum of its proper divisors (2942587).

12001025 is a wasteful number, since it uses less digits than its factorization.

12001025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020 (or 2015 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 12001025 is about 3464.2495579851. The cubic root of 12001025 is about 228.9493668367.

Adding to 12001025 its reverse (52010021), we get a palindrome (64011046).

The spelling of 12001025 in words is "twelve million, one thousand, twenty-five".