2143222 has 8 divisors (see below), whose sum is σ = 3222000. Its totient is φ = 1069224.

The previous prime is 2143217. The next prime is 2143223. The reversal of 2143222 is 2223412.

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

It is a d-powerful number, because it can be written as 2 + 1 + 4⁷ + 3¹³ + 2⁵ + 2¹³ + 2¹⁹ .

It is a junction number, because it is equal to n+sod(n) for n = 2143196 and 2143205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143223) 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, 304 + ... + 2092.

It is an arithmetic number, because the mean of its divisors is an integer number (402750).

2^2143222 is an apocalyptic number.

2143222 is a deficient number, since it is larger than the sum of its proper divisors (1078778).

2143222 is a wasteful number, since it uses less digits than its factorization.

2143222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390.

The product of its digits is 192, while the sum is 16.

The square root of 2143222 is about 1463.9747265578. The cubic root of 2143222 is about 128.9305156315.

Adding to 2143222 its reverse (2223412), we get a palindrome (4366634).

The spelling of 2143222 in words is "two million, one hundred forty-three thousand, two hundred twenty-two".