221202212201 has 8 divisors (see below), whose sum is σ = 230824723200. Its totient is φ = 211580119872.

The previous prime is 221202212177. The next prime is 221202212233. The reversal of 221202212201 is 102212202122.

It is a happy number.

221202212201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 221202212201 - 2¹⁴ = 221202195817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221202212201.

It is not an unprimeable number, because it can be changed into a prime (221202212261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1496000 + ... + 1637198.

It is an arithmetic number, because the mean of its divisors is an integer number (28853090400).

Almost surely, 2^221202212201 is an apocalyptic number.

It is an amenable number.

221202212201 is a deficient number, since it is larger than the sum of its proper divisors (9622510999).

221202212201 is a wasteful number, since it uses less digits than its factorization.

221202212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209335.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221202212201 its reverse (102212202122), we get a palindrome (323414414323).

The spelling of 221202212201 in words is "two hundred twenty-one billion, two hundred two million, two hundred twelve thousand, two hundred one".