222200102221 has 4 divisors (see below), whose sum is σ = 222771311100. Its totient is φ = 221628893344.

The previous prime is 222200102219. The next prime is 222200102281. The reversal of 222200102221 is 122201002222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34823665321 + 187376436900 = 186611^2 + 432870^2 .

It is a cyclic number.

It is not a de Polignac number, because 222200102221 - 2¹ = 222200102219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222200102195 and 222200102204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222200102281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285603856 + ... + 285604633.

It is an arithmetic number, because the mean of its divisors is an integer number (55692827775).

Almost surely, 2^222200102221 is an apocalyptic number.

It is an amenable number.

222200102221 is a deficient number, since it is larger than the sum of its proper divisors (571208879).

222200102221 is an equidigital number, since it uses as much as digits as its factorization.

222200102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571208878.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222200102221 its reverse (122201002222), we get a palindrome (344401104443).

Subtracting from 222200102221 its reverse (122201002222), we obtain a palindrome (99999099999).

The spelling of 222200102221 in words is "two hundred twenty-two billion, two hundred million, one hundred two thousand, two hundred twenty-one".