103221105 has 32 divisors (see below), whose sum is σ = 178827264. Its totient is φ = 50539776.

The previous prime is 103221073. The next prime is 103221109. The reversal of 103221105 is 501122301.

It is not a de Polignac number, because 103221105 - 2⁵ = 103221073 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 not an unprimeable number, because it can be changed into a prime (103221109) 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 31 ways as a sum of consecutive naturals, for example, 37072 + ... + 39758.

It is an arithmetic number, because the mean of its divisors is an integer number (5588352).

Almost surely, 2^103221105 is an apocalyptic number.

103221105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103221105 is a deficient number, since it is larger than the sum of its proper divisors (75606159).

103221105 is a wasteful number, since it uses less digits than its factorization.

103221105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 103221105 is about 10159.7787869618. The cubic root of 103221105 is about 469.0899926266.

Adding to 103221105 its reverse (501122301), we get a palindrome (604343406).

The spelling of 103221105 in words is "one hundred three million, two hundred twenty-one thousand, one hundred five".