102221105 has 48 divisors (see below), whose sum is σ = 151202304. Its totient is φ = 66044160.

The previous prime is 102221101. The next prime is 102221117. The reversal of 102221105 is 501122201.

It is not a de Polignac number, because 102221105 - 2² = 102221101 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 102221105.

It is not an unprimeable number, because it can be changed into a prime (102221101) 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 47 ways as a sum of consecutive naturals, for example, 326429 + ... + 326741.

It is an arithmetic number, because the mean of its divisors is an integer number (3150048).

Almost surely, 2^102221105 is an apocalyptic number.

It is an amenable number.

102221105 is a deficient number, since it is larger than the sum of its proper divisors (48981199).

102221105 is a wasteful number, since it uses less digits than its factorization.

102221105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 102221105 is about 10110.4453413289. The cubic root of 102221105 is about 467.5702354750.

Adding to 102221105 its reverse (501122201), we get a palindrome (603343306).

The spelling of 102221105 in words is "one hundred two million, two hundred twenty-one thousand, one hundred five".