222120210 has 64 divisors (see below), whose sum is σ = 579882240. Its totient is φ = 54124800.

The previous prime is 222120179. The next prime is 222120211. The reversal of 222120210 is 12021222.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222120211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36571 + ... + 42209.

It is an arithmetic number, because the mean of its divisors is an integer number (9060660).

Almost surely, 2^222120210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222120210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289941120).

222120210 is an abundant number, since it is smaller than the sum of its proper divisors (357762030).

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

222120210 is a wasteful number, since it uses less digits than its factorization.

222120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5763.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 222120210 is about 14903.6978632821. The cubic root of 222120210 is about 605.6141658365.

Adding to 222120210 its reverse (12021222), we get a palindrome (234141432).

The spelling of 222120210 in words is "two hundred twenty-two million, one hundred twenty thousand, two hundred ten".