228032211 has 16 divisors (see below), whose sum is σ = 331936128. Its totient is φ = 138096000.

The previous prime is 228032209. The next prime is 228032239. The reversal of 228032211 is 112230822.

It is a happy number.

It is not a de Polignac number, because 228032211 - 2¹ = 228032209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228032011) 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, 80011 + ... + 82811.

It is an arithmetic number, because the mean of its divisors is an integer number (20746008).

Almost surely, 2^228032211 is an apocalyptic number.

228032211 is a deficient number, since it is larger than the sum of its proper divisors (103903917).

228032211 is a wasteful number, since it uses less digits than its factorization.

228032211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5282.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 228032211 is about 15100.7354456662. The cubic root of 228032211 is about 610.9402421817.

The spelling of 228032211 in words is "two hundred twenty-eight million, thirty-two thousand, two hundred eleven".