115000025221 has 4 divisors (see below), whose sum is σ = 115761614944. Its totient is φ = 114238435500.

The previous prime is 115000025207. The next prime is 115000025263. The reversal of 115000025221 is 122520000511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 115000025221 - 2⁹ = 115000024709 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 (115000025281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380794635 + ... + 380794936.

It is an arithmetic number, because the mean of its divisors is an integer number (28940403736).

Almost surely, 2^115000025221 is an apocalyptic number.

It is an amenable number.

115000025221 is a deficient number, since it is larger than the sum of its proper divisors (761589723).

115000025221 is an equidigital number, since it uses as much as digits as its factorization.

115000025221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761589722.

The product of its (nonzero) digits is 200, while the sum is 19.

Adding to 115000025221 its reverse (122520000511), we get a palindrome (237520025732).

The spelling of 115000025221 in words is "one hundred fifteen billion, twenty-five thousand, two hundred twenty-one".