222422560 has 48 divisors (see below), whose sum is σ = 556390296. Its totient is φ = 83734528.

The previous prime is 222422549. The next prime is 222422567. The reversal of 222422560 is 65224222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 216796176 + 5626384 = 14724^2 + 2372^2 .

It is not an unprimeable number, because it can be changed into a prime (222422567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38167 + ... + 43606.

Almost surely, 2^222422560 is an apocalyptic number.

222422560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222422560 is an abundant number, since it is smaller than the sum of its proper divisors (333967736).

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

222422560 is a wasteful number, since it uses less digits than its factorization.

222422560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81805 (or 81797 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 222422560 is about 14913.8378695760. The cubic root of 222422560 is about 605.8888285576. Note that the first 4 decimals are identical.

Adding to 222422560 its reverse (65224222), we get a palindrome (287646782).

The spelling of 222422560 in words is "two hundred twenty-two million, four hundred twenty-two thousand, five hundred sixty".