222210 has 32 divisors (see below), whose sum is σ = 593280.
Its totient is φ = 59184.
The previous prime is 222199. The next prime is 222247. The reversal of 222210 is 12222.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a Curzon number.
It is a nialpdrome in base 10.
It is a junction number, because it is equal to n+sod(n) for n = 222192 and 222201.
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, 142 + ... + 681.
It is an arithmetic number, because the mean of its divisors is an integer number (18540).
2222210 is an apocalyptic number.
222210 is an abundant number, since it is smaller than the sum of its proper divisors (371070).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
222210 is a wasteful number, since it uses less digits than its factorization.
222210 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 839 (or 833 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 9.
The square root of 222210 is about 471.3915569885.
The cubic root of 222210 is about 60.5695759448.
Adding to 222210 its reverse (12222), we get a palindrome (234432).
The spelling of 222210 in words is "two hundred twenty-two thousand, two hundred ten", and thus it is an iban number.