221102201222 has 16 divisors (see below), whose sum is σ = 379580888832. Its totient is φ = 94620950280.

The previous prime is 221102201213. The next prime is 221102201231. The reversal of 221102201222 is 222102201122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (221102201213) and next prime (221102201231).

It is a self number, because there is not a number n which added to its sum of digits gives 221102201222.

It is a congruent number.

It is an unprimeable number.

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, 11417978 + ... + 11437325.

It is an arithmetic number, because the mean of its divisors is an integer number (23723805552).

Almost surely, 2^221102201222 is an apocalyptic number.

221102201222 is a deficient number, since it is larger than the sum of its proper divisors (158478687610).

221102201222 is a wasteful number, since it uses less digits than its factorization.

221102201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22856003.

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

Adding to 221102201222 its reverse (222102201122), we get a palindrome (443204402344).

The spelling of 221102201222 in words is "two hundred twenty-one billion, one hundred two million, two hundred one thousand, two hundred twenty-two".