25001123221201 has 8 divisors (see below), whose sum is σ = 25013727184320. Its totient is φ = 24988519764912.

The previous prime is 25001123221187. The next prime is 25001123221237. The reversal of 25001123221201 is 10212232110052.

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 25001123221201 - 2²⁵ = 25001089666769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25001123221901) 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, 133901356 + ... + 134087938.

It is an arithmetic number, because the mean of its divisors is an integer number (3126715898040).

Almost surely, 2^{25001123221201} is an apocalyptic number.

It is an amenable number.

25001123221201 is a deficient number, since it is larger than the sum of its proper divisors (12603963119).

25001123221201 is a wasteful number, since it uses less digits than its factorization.

25001123221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253415.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 25001123221201 its reverse (10212232110052), we get a palindrome (35213355331253).

The spelling of 25001123221201 in words is "twenty-five trillion, one billion, one hundred twenty-three million, two hundred twenty-one thousand, two hundred one".