222336720 has 60 divisors (see below), whose sum is σ = 746683236. Its totient is φ = 59289600.

The previous prime is 222336701. The next prime is 222336769. The reversal of 222336720 is 27633222.

It can be written as a sum of positive squares in 2 ways, for example, as 107246736 + 115089984 = 10356^2 + 10728^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 153681 + ... + 155120.

Almost surely, 2^222336720 is an apocalyptic number.

222336720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222336720 is an abundant number, since it is smaller than the sum of its proper divisors (524346516).

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

222336720 is a wasteful number, since it uses less digits than its factorization.

222336720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308820 (or 308811 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 222336720 is about 14910.9597276634. The cubic root of 222336720 is about 605.8108745509.

Adding to 222336720 its reverse (27633222), we get a palindrome (249969942).

The spelling of 222336720 in words is "two hundred twenty-two million, three hundred thirty-six thousand, seven hundred twenty".