222201110221 has 8 divisors (see below), whose sum is σ = 230693056920. Its totient is φ = 213764486208.

The previous prime is 222201110077. The next prime is 222201110233. The reversal of 222201110221 is 122011102222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4241916900 + 217959193321 = 65130^2 + 466861^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222201110221 - 2¹³ = 222201102029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222201110195 and 222201110204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222201110921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13822486 + ... + 13838551.

It is an arithmetic number, because the mean of its divisors is an integer number (28836632115).

Almost surely, 2^222201110221 is an apocalyptic number.

It is an amenable number.

222201110221 is a deficient number, since it is larger than the sum of its proper divisors (8491946699).

222201110221 is a wasteful number, since it uses less digits than its factorization.

222201110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27661343.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222201110221 its reverse (122011102222), we get a palindrome (344212212443).

The spelling of 222201110221 in words is "two hundred twenty-two billion, two hundred one million, one hundred ten thousand, two hundred twenty-one".