222466 has 8 divisors (see below), whose sum is σ = 341964. Its totient is φ = 108480.

The previous prime is 222461. The next prime is 222493. The reversal of 222466 is 664222.

222466 = T₈₃ + T₈₄ + ... + T₁₂₃.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 221841 + 625 = 471^2 + 25^2 .

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

It is a super-2 number, since 2×222466² = 98982242312, which contains 22 as substring.

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 (222461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1275 + ... + 1438.

2²²²⁴⁶⁶ is an apocalyptic number.

222466 is a deficient number, since it is larger than the sum of its proper divisors (119498).

222466 is a wasteful number, since it uses less digits than its factorization.

222466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2756.

The product of its digits is 1152, while the sum is 22.

The square root of 222466 is about 471.6630152980. The cubic root of 222466 is about 60.5928270146.

Adding to 222466 its reverse (664222), we get a palindrome (886688).

The spelling of 222466 in words is "two hundred twenty-two thousand, four hundred sixty-six".