222111022201 has 8 divisors (see below), whose sum is σ = 222528763080. Its totient is φ = 221693395968.

The previous prime is 222111022151. The next prime is 222111022213. The reversal of 222111022201 is 102220111222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 34924134400 + 187186887801 = 186880^2 + 432651^2 .

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 222111022201 - 2²⁹ = 221574151289 is a prime.

It is a super-2 number, since 2×222111022201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222111022261) 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 7 ways as a sum of consecutive naturals, for example, 4520595 + ... + 4569463.

It is an arithmetic number, because the mean of its divisors is an integer number (27816095385).

Almost surely, 2^222111022201 is an apocalyptic number.

It is an amenable number.

222111022201 is a deficient number, since it is larger than the sum of its proper divisors (417740879).

222111022201 is an equidigital number, since it uses as much as digits as its factorization.

222111022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57323.

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

Adding to 222111022201 its reverse (102220111222), we get a palindrome (324331133423).

The spelling of 222111022201 in words is "two hundred twenty-two billion, one hundred eleven million, twenty-two thousand, two hundred one".