222820560 has 240 divisors, whose sum is σ = 789235200. Its totient is φ = 56263680.

The previous prime is 222820553. The next prime is 222820567. The reversal of 222820560 is 65028222.

222820560 is a `hidden beast` number, since 2 + 22 + 82 + 0 + 560 = 666.

It is an interprime number because it is at equal distance from previous prime (222820553) and next prime (222820567).

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222820567) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1495366 + ... + 1495514.

It is an arithmetic number, because the mean of its divisors is an integer number (3288480).

Almost surely, 2^222820560 is an apocalyptic number.

222820560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222820560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394617600).

222820560 is an abundant number, since it is smaller than the sum of its proper divisors (566414640).

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

222820560 is a wasteful number, since it uses less digits than its factorization.

222820560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 222820560 is about 14927.1752183727. The cubic root of 222820560 is about 606.2500030467.

Adding to 222820560 its reverse (65028222), we get a palindrome (287848782).

The spelling of 222820560 in words is "two hundred twenty-two million, eight hundred twenty thousand, five hundred sixty".