2128222 has 8 divisors (see below), whose sum is σ = 3206736. Its totient is φ = 1059312.

The previous prime is 2128201. The next prime is 2128241. The reversal of 2128222 is 2228212.

2128222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2128222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1818 + ... + 2749.

It is an arithmetic number, because the mean of its divisors is an integer number (400842).

2^2128222 is an apocalyptic number.

2128222 is a deficient number, since it is larger than the sum of its proper divisors (1078514).

2128222 is a wasteful number, since it uses less digits than its factorization.

2128222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4802.

The product of its digits is 256, while the sum is 19.

The square root of 2128222 is about 1458.8426919994. The cubic root of 2128222 is about 128.6290245183.

The spelling of 2128222 in words is "two million, one hundred twenty-eight thousand, two hundred twenty-two".