105000221 has 8 divisors (see below), whose sum is σ = 112238784. Its totient is φ = 97984480.

The previous prime is 105000197. The next prime is 105000239. The reversal of 105000221 is 122000501.

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 105000221 - 2¹⁸ = 104738077 is a prime.

It is a super-2 number, since 2×105000221² = 22050092820097682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105000241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54731 + ... + 56616.

It is an arithmetic number, because the mean of its divisors is an integer number (14029848).

Almost surely, 2^105000221 is an apocalyptic number.

It is an amenable number.

105000221 is a deficient number, since it is larger than the sum of its proper divisors (7238563).

105000221 is a wasteful number, since it uses less digits than its factorization.

105000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111411.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 105000221 is about 10246.9615496497. The cubic root of 105000221 is about 471.7697290188.

Adding to 105000221 its reverse (122000501), we get a palindrome (227000722).

The spelling of 105000221 in words is "one hundred five million, two hundred twenty-one", and thus it is an aban number.