222012210 has 64 divisors (see below), whose sum is σ = 625427712. Its totient is φ = 49372416.

The previous prime is 222012209. The next prime is 222012229. The reversal of 222012210 is 12210222.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6517 + ... + 22056.

It is an arithmetic number, because the mean of its divisors is an integer number (9772308).

Almost surely, 2^222012210 is an apocalyptic number.

222012210 is an abundant number, since it is smaller than the sum of its proper divisors (403415502).

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

222012210 is a wasteful number, since it uses less digits than its factorization.

222012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28627.

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

The square root of 222012210 is about 14900.0741608893. The cubic root of 222012210 is about 605.5159953707.

Adding to 222012210 its reverse (12210222), we get a palindrome (234222432).

It can be divided in two parts, 222012 and 210, that added together give a palindrome (222222).

The spelling of 222012210 in words is "two hundred twenty-two million, twelve thousand, two hundred ten".