128322211 has 8 divisors (see below), whose sum is σ = 130111920. Its totient is φ = 126543648.

The previous prime is 128322209. The next prime is 128322263. The reversal of 128322211 is 112223821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128322211 - 2¹ = 128322209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128322281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21885 + ... + 27121.

It is an arithmetic number, because the mean of its divisors is an integer number (16263990).

Almost surely, 2^128322211 is an apocalyptic number.

128322211 is a deficient number, since it is larger than the sum of its proper divisors (1789709).

128322211 is a wasteful number, since it uses less digits than its factorization.

128322211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5573.

The product of its digits is 384, while the sum is 22.

The square root of 128322211 is about 11327.9393977899. The cubic root of 128322211 is about 504.3909410613.

The spelling of 128322211 in words is "one hundred twenty-eight million, three hundred twenty-two thousand, two hundred eleven".