222670 has 16 divisors (see below), whose sum is σ = 458208. Its totient is φ = 76320.

The previous prime is 222659. The next prime is 222679. The reversal of 222670 is 76222.

222670 = T₁₃₅ + T₁₃₆ + ... + T₁₅₅.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222679) by changing a digit.

222670 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 7 ways as a sum of consecutive naturals, for example, 1521 + ... + 1660.

It is an arithmetic number, because the mean of its divisors is an integer number (28638).

2²²²⁶⁷⁰ is an apocalyptic number.

222670 is an abundant number, since it is smaller than the sum of its proper divisors (235538).

It is a weird number, because it is abundant, but not a pseudoperfect number.

222670 is a wasteful number, since it uses less digits than its factorization.

222670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3195.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 222670 is about 471.8792218354. The cubic root of 222670 is about 60.6113424437.

Adding to 222670 its reverse (76222), we get a palindrome (298892).

The spelling of 222670 in words is "two hundred twenty-two thousand, six hundred seventy".