222270 has 32 divisors (see below), whose sum is σ = 552960. Its totient is φ = 57120.

The previous prime is 222269. The next prime is 222289. The reversal of 222270 is 72222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 811 + ... + 1049.

It is an arithmetic number, because the mean of its divisors is an integer number (17280).

2²²²²⁷⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276480).

222270 is an abundant number, since it is smaller than the sum of its proper divisors (330690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222270 is a wasteful number, since it uses less digits than its factorization.

222270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280.

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 222270 is about 471.4551940535. The cubic root of 222270 is about 60.5750270159.

Adding to 222270 its reverse (72222), we get a palindrome (294492).

The spelling of 222270 in words is "two hundred twenty-two thousand, two hundred seventy", and thus it is an iban number.