105055221 has 8 divisors (see below), whose sum is σ = 142046784. Its totient is φ = 69050240.

The previous prime is 105055219. The next prime is 105055253. The reversal of 105055221 is 122550501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105055221 - 2¹ = 105055219 is a prime.

It is a super-2 number, since 2×105055221² = 22073198918717682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105055211) 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, 246396 + ... + 246821.

It is an arithmetic number, because the mean of its divisors is an integer number (17755848).

Almost surely, 2^105055221 is an apocalyptic number.

It is an amenable number.

105055221 is a deficient number, since it is larger than the sum of its proper divisors (36991563).

105055221 is an equidigital number, since it uses as much as digits as its factorization.

105055221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493291.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 105055221 is about 10249.6449206790. The cubic root of 105055221 is about 471.8520869596.

The spelling of 105055221 in words is "one hundred five million, fifty-five thousand, two hundred twenty-one".