266222 has 8 divisors (see below), whose sum is σ = 435672. Its totient is φ = 121000.

The previous prime is 266221. The next prime is 266239. The reversal of 266222 is 222662.

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

It is a junction number, because it is equal to n+sod(n) for n = 266194 and 266203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266221) by changing a digit.

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, 6029 + ... + 6072.

It is an arithmetic number, because the mean of its divisors is an integer number (54459).

2²⁶⁶²²² is an apocalyptic number.

266222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

266222 is a deficient number, since it is larger than the sum of its proper divisors (169450).

266222 is a wasteful number, since it uses less digits than its factorization.

266222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12114.

The product of its digits is 576, while the sum is 20.

The square root of 266222 is about 515.9670532117. The cubic root of 266222 is about 64.3301623238.

Adding to 266222 its reverse (222662), we get a palindrome (488884).

It can be divided in two parts, 2662 and 22, that multiplied together give a square (58564 = 242²).

The spelling of 266222 in words is "two hundred sixty-six thousand, two hundred twenty-two".