222312270 has 16 divisors (see below), whose sum is σ = 533549520. Its totient is φ = 59283264.

The previous prime is 222312257. The next prime is 222312271. The reversal of 222312270 is 72213222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222312271) 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 7 ways as a sum of consecutive naturals, for example, 3705175 + ... + 3705234.

It is an arithmetic number, because the mean of its divisors is an integer number (33346845).

Almost surely, 2^222312270 is an apocalyptic number.

222312270 is an abundant number, since it is smaller than the sum of its proper divisors (311237250).

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

222312270 is a wasteful number, since it uses less digits than its factorization.

222312270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7410419.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 222312270 is about 14910.1398383784. The cubic root of 222312270 is about 605.7886670648.

Adding to 222312270 its reverse (72213222), we get a palindrome (294525492).

The spelling of 222312270 in words is "two hundred twenty-two million, three hundred twelve thousand, two hundred seventy".