228586876221 has 16 divisors (see below), whose sum is σ = 332509250880. Its totient is φ = 138529480320.

The previous prime is 228586876213. The next prime is 228586876261. The reversal of 228586876221 is 122678685822.

It is not a de Polignac number, because 228586876221 - 2³ = 228586876213 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228586876261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405471 + ... + 788403.

It is an arithmetic number, because the mean of its divisors is an integer number (20781828180).

Almost surely, 2^228586876221 is an apocalyptic number.

It is an amenable number.

228586876221 is a deficient number, since it is larger than the sum of its proper divisors (103922374659).

228586876221 is a wasteful number, since it uses less digits than its factorization.

228586876221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401036.

The product of its digits is 10321920, while the sum is 57.

The spelling of 228586876221 in words is "two hundred twenty-eight billion, five hundred eighty-six million, eight hundred seventy-six thousand, two hundred twenty-one".