222120320 has 32 divisors (see below), whose sum is σ = 531007920. Its totient is φ = 88847872.

The previous prime is 222120313. The next prime is 222120323. The reversal of 222120320 is 23021222.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 222120295 and 222120304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222120323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172892 + ... + 174171.

Almost surely, 2^222120320 is an apocalyptic number.

222120320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222120320 is an abundant number, since it is smaller than the sum of its proper divisors (308887600).

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

222120320 is an equidigital number, since it uses as much as digits as its factorization.

222120320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347082 (or 347070 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 222120320 is about 14903.7015536410. The cubic root of 222120320 is about 605.6142658087.

Adding to 222120320 its reverse (23021222), we get a palindrome (245141542).

The spelling of 222120320 in words is "two hundred twenty-two million, one hundred twenty thousand, three hundred twenty".