115088889221 has 16 divisors (see below), whose sum is σ = 122745268800. Its totient is φ = 107600400000.

The previous prime is 115088889217. The next prime is 115088889247. The reversal of 115088889221 is 122988880511.

It is a cyclic number.

It is not a de Polignac number, because 115088889221 - 2² = 115088889217 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 (115088819221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409121 + ... + 630521.

It is an arithmetic number, because the mean of its divisors is an integer number (7671579300).

Almost surely, 2^115088889221 is an apocalyptic number.

It is an amenable number.

115088889221 is a deficient number, since it is larger than the sum of its proper divisors (7656379579).

115088889221 is a wasteful number, since it uses less digits than its factorization.

115088889221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221780.

The product of its (nonzero) digits is 737280, while the sum is 53.

The spelling of 115088889221 in words is "one hundred fifteen billion, eighty-eight million, eight hundred eighty-nine thousand, two hundred twenty-one".