128222 has 8 divisors (see below), whose sum is σ = 195672. Its totient is φ = 63000.

The previous prime is 128221. The next prime is 128237. The reversal of 128222 is 222821.

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

128222 is a modest number, since divided by 222 gives 128 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 128222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404 + ... + 647.

It is an arithmetic number, because the mean of its divisors is an integer number (24459).

2¹²⁸²²² is an apocalyptic number.

128222 is a deficient number, since it is larger than the sum of its proper divisors (67450).

128222 is a wasteful number, since it uses less digits than its factorization.

128222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114.

The product of its digits is 128, while the sum is 17.

The square root of 128222 is about 358.0809964240. The cubic root of 128222 is about 50.4259608422.

The spelling of 128222 in words is "one hundred twenty-eight thousand, two hundred twenty-two".