221102 has 16 divisors (see below), whose sum is σ = 401760. Its totient is φ = 89088.

The previous prime is 221101. The next prime is 221159. The reversal of 221102 is 201122.

It is a self number, because there is not a number n which added to its sum of digits gives 221102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227 + ... + 702.

It is an arithmetic number, because the mean of its divisors is an integer number (25110).

2²²¹¹⁰² is an apocalyptic number.

221102 is a deficient number, since it is larger than the sum of its proper divisors (180658).

221102 is a wasteful number, since it uses less digits than its factorization.

221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 221102 is about 470.2148445126. The cubic root of 221102 is about 60.4687359812.

Adding to 221102 its reverse (201122), we get a palindrome (422224).

It can be divided in two parts, 221 and 102, that added together give a palindrome (323).

The spelling of 221102 in words is "two hundred twenty-one thousand, one hundred two", and thus it is an iban number.