221011220000222 has 16 divisors (see below), whose sum is σ = 336970019889600. Its totient is φ = 108688078830240.

The previous prime is 221011220000213. The next prime is 221011220000227. The reversal of 221011220000222 is 222000022110122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 221011220000222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221011220000227) 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, 47465222 + ... + 51913097.

It is an arithmetic number, because the mean of its divisors is an integer number (21060626243100).

Almost surely, 2^{221011220000222} is an apocalyptic number.

221011220000222 is a deficient number, since it is larger than the sum of its proper divisors (115958799889378).

221011220000222 is a wasteful number, since it uses less digits than its factorization.

221011220000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99396611.

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

Adding to 221011220000222 its reverse (222000022110122), we get a palindrome (443011242110344).

The spelling of 221011220000222 in words is "two hundred twenty-one trillion, eleven billion, two hundred twenty million, two hundred twenty-two", and thus it is an aban number.