222221232320 has 224 divisors, whose sum is σ = 546130081728. Its totient is φ = 86091579392.

The previous prime is 222221232313. The next prime is 222221232323. The reversal of 222221232320 is 23232122222.

It is not an unprimeable number, because it can be changed into a prime (222221232323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 758434094 + ... + 758434386.

It is an arithmetic number, because the mean of its divisors is an integer number (2438080722).

Almost surely, 2^222221232320 is an apocalyptic number.

222221232320 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 222221232320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273065040864).

222221232320 is an abundant number, since it is smaller than the sum of its proper divisors (323908849408).

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

222221232320 is a wasteful number, since it uses less digits than its factorization.

222221232320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 222221232320 its reverse (23232122222), we get a palindrome (245453354542).

The spelling of 222221232320 in words is "two hundred twenty-two billion, two hundred twenty-one million, two hundred thirty-two thousand, three hundred twenty".