102222105 has 16 divisors (see below), whose sum is σ = 173176704. Its totient is φ = 51311360.

The previous prime is 102222089. The next prime is 102222149. The reversal of 102222105 is 501222201.

It is not a de Polignac number, because 102222105 - 2⁴ = 102222089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 200181 + ... + 200690.

It is an arithmetic number, because the mean of its divisors is an integer number (10823544).

Almost surely, 2^102222105 is an apocalyptic number.

102222105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102222105 is a deficient number, since it is larger than the sum of its proper divisors (70954599).

102222105 is a wasteful number, since it uses less digits than its factorization.

102222105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400896.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 102222105 is about 10110.4947950137. The cubic root of 102222105 is about 467.5717601722.

Adding to 102222105 its reverse (501222201), we get a palindrome (603444306).

The spelling of 102222105 in words is "one hundred two million, two hundred twenty-two thousand, one hundred five".