228811122 has 32 divisors (see below), whose sum is σ = 516812160. Its totient is φ = 75018960.

The previous prime is 228811117. The next prime is 228811151. The reversal of 228811122 is 221118822.

228811122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31438 + ... + 38025.

It is an arithmetic number, because the mean of its divisors is an integer number (16150380).

Almost surely, 2^228811122 is an apocalyptic number.

228811122 is an abundant number, since it is smaller than the sum of its proper divisors (288001038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228811122 is a wasteful number, since it uses less digits than its factorization.

228811122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69535 (or 69529 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 228811122 is about 15126.5039582846. The cubic root of 228811122 is about 611.6350669411.

Adding to 228811122 its reverse (221118822), we get a palindrome (449929944).

The spelling of 228811122 in words is "two hundred twenty-eight million, eight hundred eleven thousand, one hundred twenty-two".