222000021320 has 288 divisors, whose sum is σ = 666460872000. Its totient is φ = 66184715520.

The previous prime is 222000021317. The next prime is 222000021377. The reversal of 222000021320 is 23120000222.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 222000021295 and 222000021304.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5434331 + ... + 5475029.

It is an arithmetic number, because the mean of its divisors is an integer number (2314100250).

Almost surely, 2^222000021320 is an apocalyptic number.

222000021320 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 222000021320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333230436000).

222000021320 is an abundant number, since it is smaller than the sum of its proper divisors (444460850680).

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

222000021320 is a wasteful number, since it uses less digits than its factorization.

222000021320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40769 (or 40747 counting only the distinct ones).

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

Adding to 222000021320 its reverse (23120000222), we get a palindrome (245120021542).

The spelling of 222000021320 in words is "two hundred twenty-two billion, twenty-one thousand, three hundred twenty".