128132222 has 8 divisors (see below), whose sum is σ = 192585000. Its totient is φ = 63937224.

The previous prime is 128132197. The next prime is 128132239. The reversal of 128132222 is 222231821.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63197 + ... + 65192.

It is an arithmetic number, because the mean of its divisors is an integer number (24073125).

Almost surely, 2^128132222 is an apocalyptic number.

128132222 is a deficient number, since it is larger than the sum of its proper divisors (64452778).

128132222 is a wasteful number, since it uses less digits than its factorization.

128132222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128890.

The product of its digits is 768, while the sum is 23.

The square root of 128132222 is about 11319.5504327690. The cubic root of 128132222 is about 504.1418907419.

The spelling of 128132222 in words is "one hundred twenty-eight million, one hundred thirty-two thousand, two hundred twenty-two".