222770 has 8 divisors (see below), whose sum is σ = 401004. Its totient is φ = 89104.

The previous prime is 222731. The next prime is 222773. The reversal of 222770 is 77222.

222770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 219961 + 2809 = 469^2 + 53^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222773) by changing a digit.

222770 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11129 + ... + 11148.

2²²²⁷⁷⁰ is an apocalyptic number.

222770 is a deficient number, since it is larger than the sum of its proper divisors (178234).

222770 is a wasteful number, since it uses less digits than its factorization.

222770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22284.

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 222770 is about 471.9851692585. The cubic root of 222770 is about 60.6204145042.

Adding to 222770 its reverse (77222), we get a palindrome (299992).

The spelling of 222770 in words is "two hundred twenty-two thousand, seven hundred seventy", and thus it is an iban number.