222667 has 4 divisors (see below), whose sum is σ = 224856. Its totient is φ = 220480.

The previous prime is 222659. The next prime is 222679. The reversal of 222667 is 766222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222667 - 2³ = 222659 is a prime.

It is a Duffinian number.

222667 is a lucky number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222647) 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, 934 + ... + 1147.

It is an arithmetic number, because the mean of its divisors is an integer number (56214).

2²²²⁶⁶⁷ is an apocalyptic number.

222667 is a deficient number, since it is larger than the sum of its proper divisors (2189).

222667 is a wasteful number, since it uses less digits than its factorization.

222667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188.

The product of its digits is 2016, while the sum is 25.

The square root of 222667 is about 471.8760430452. The cubic root of 222667 is about 60.6110702399.

Adding to 222667 its reverse (766222), we get a palindrome (988889).

The spelling of 222667 in words is "two hundred twenty-two thousand, six hundred sixty-seven".