12525031332221 has 8 divisors (see below), whose sum is σ = 12539019326400. Its totient is φ = 12511048462560.

The previous prime is 12525031332217. The next prime is 12525031332227. The reversal of 12525031332221 is 12223313052521.

It is a happy number.

12525031332221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12525031332221 - 2² = 12525031332217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12525031332227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3620336 + ... + 6177126.

It is an arithmetic number, because the mean of its divisors is an integer number (1567377415800).

Almost surely, 2^{12525031332221} is an apocalyptic number.

It is an amenable number.

12525031332221 is a deficient number, since it is larger than the sum of its proper divisors (13987994179).

12525031332221 is a wasteful number, since it uses less digits than its factorization.

12525031332221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562259.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 12525031332221 its reverse (12223313052521), we get a palindrome (24748344384742).

The spelling of 12525031332221 in words is "twelve trillion, five hundred twenty-five billion, thirty-one million, three hundred thirty-two thousand, two hundred twenty-one".