222200012221 has 16 divisors (see below), whose sum is σ = 246561336000. Its totient is φ = 198561024000.

The previous prime is 222200012219. The next prime is 222200012249. The reversal of 222200012221 is 122210002222.

It is a cyclic number.

It is not a de Polignac number, because 222200012221 - 2¹ = 222200012219 is a prime.

It is a Duffinian number.

222200012221 is a modest number, since divided by 12221 gives 2222 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 222200012195 and 222200012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222200312221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564996 + ... + 873853.

It is an arithmetic number, because the mean of its divisors is an integer number (15410083500).

Almost surely, 2^222200012221 is an apocalyptic number.

It is an amenable number.

222200012221 is a deficient number, since it is larger than the sum of its proper divisors (24361323779).

222200012221 is a wasteful number, since it uses less digits than its factorization.

222200012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439100.

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

Adding to 222200012221 its reverse (122210002222), we get a palindrome (344410014443).

Subtracting from 222200012221 its reverse (122210002222), we obtain a palindrome (99990009999).

It can be divided in two parts, 22220001 and 2221, that added together give a palindrome (22222222).

The spelling of 222200012221 in words is "two hundred twenty-two billion, two hundred million, twelve thousand, two hundred twenty-one".