222000222220 has 72 divisors (see below), whose sum is σ = 542963221920. Its totient is φ = 76023360000.

The previous prime is 222000222209. The next prime is 222000222253. The reversal of 222000222220 is 22222000222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 222000222194 and 222000222203.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 687220 + ... + 957220.

It is an arithmetic number, because the mean of its divisors is an integer number (7541155860).

Almost surely, 2^222000222220 is an apocalyptic number.

222000222220 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 222000222220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271481610960).

222000222220 is an abundant number, since it is smaller than the sum of its proper divisors (320962999700).

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

222000222220 is a wasteful number, since it uses less digits than its factorization.

222000222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270863 (or 270854 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 222000222220 its reverse (22222000222), we get a palindrome (244222222442).

The spelling of 222000222220 in words is "two hundred twenty-two billion, two hundred twenty-two thousand, two hundred twenty".