222312102320 has 320 divisors, whose sum is σ = 659314944000. Its totient is φ = 69108157440.

The previous prime is 222312102301. The next prime is 222312102329. The reversal of 222312102320 is 23201213222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 222312102292 and 222312102301.

It is not an unprimeable number, because it can be changed into a prime (222312102329) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 153635837 + ... + 153637283.

It is an arithmetic number, because the mean of its divisors is an integer number (2060359200).

Almost surely, 2^222312102320 is an apocalyptic number.

222312102320 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 222312102320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329657472000).

222312102320 is an abundant number, since it is smaller than the sum of its proper divisors (437002841680).

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

222312102320 is a wasteful number, since it uses less digits than its factorization.

222312102320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001 (or 1981 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 222312102320 its reverse (23201213222), we get a palindrome (245513315542).

The spelling of 222312102320 in words is "two hundred twenty-two billion, three hundred twelve million, one hundred two thousand, three hundred twenty".