222200100000 has 216 divisors, whose sum is σ = 789804566460. Its totient is φ = 59253120000.

The previous prime is 222200099981. The next prime is 222200100013. The reversal of 222200100000 is 1002222.

It can be written as a sum of positive squares in 6 ways, for example, as 7212085776 + 214988014224 = 84924^2 + 463668^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

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 35 ways as a sum of consecutive naturals, for example, 776556 + ... + 1023444.

Almost surely, 2^222200100000 is an apocalyptic number.

222200100000 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 222200100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394902283230).

222200100000 is an abundant number, since it is smaller than the sum of its proper divisors (567604466460).

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

222200100000 is an equidigital number, since it uses as much as digits as its factorization.

222200100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246930 (or 246899 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 222200100000 its reverse (1002222), we get a palindrome (222201102222).

The spelling of 222200100000 in words is "two hundred twenty-two billion, two hundred million, one hundred thousand".