222220000000 has 288 divisors, whose sum is σ = 570082915584. Its totient is φ = 86400000000.

The previous prime is 222219999971. The next prime is 222220000027. The reversal of 222220000000 is 22222.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 819999865 + ... + 820000135.

It is an arithmetic number, because the mean of its divisors is an integer number (1979454568).

Almost surely, 2^222220000000 is an apocalyptic number.

222220000000 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 222220000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285041457792).

222220000000 is an abundant number, since it is smaller than the sum of its proper divisors (347862915584).

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

222220000000 is an frugal number, since it uses more digits than its factorization.

222220000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

Adding to 222220000000 its reverse (22222), we get a palindrome (222220022222).

222220000000 divided by its reverse (22222) gives a 7-th power (10000000 = 10⁷).

The spelling of 222220000000 in words is "two hundred twenty-two billion, two hundred twenty million", and thus it is an aban number.