228321084081 has 16 divisors (see below), whose sum is σ = 306557208000. Its totient is φ = 151150081728.

The previous prime is 228321084077. The next prime is 228321084161. The reversal of 228321084081 is 180480123822.

It is not a de Polignac number, because 228321084081 - 2² = 228321084077 is a prime.

It is a super-2 number, since 2×228321084081² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (228321084031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1565775 + ... + 1705371.

It is an arithmetic number, because the mean of its divisors is an integer number (19159825500).

Almost surely, 2^228321084081 is an apocalyptic number.

It is an amenable number.

228321084081 is a deficient number, since it is larger than the sum of its proper divisors (78236123919).

228321084081 is a wasteful number, since it uses less digits than its factorization.

228321084081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143408.

The product of its (nonzero) digits is 49152, while the sum is 39.

The spelling of 228321084081 in words is "two hundred twenty-eight billion, three hundred twenty-one million, eighty-four thousand, eighty-one".