105130221 has 16 divisors (see below), whose sum is σ = 160347264. Its totient is φ = 60018624.

The previous prime is 105130189. The next prime is 105130231. The reversal of 105130221 is 122031501.

It is not a de Polignac number, because 105130221 - 2⁵ = 105130189 is a prime.

It is a super-2 number, since 2×105130221² = 22104726735017682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105130221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105130231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34075 + ... + 37031.

It is an arithmetic number, because the mean of its divisors is an integer number (10021704).

Almost surely, 2^105130221 is an apocalyptic number.

It is an amenable number.

105130221 is a deficient number, since it is larger than the sum of its proper divisors (55217043).

105130221 is a wasteful number, since it uses less digits than its factorization.

105130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4660.

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

The square root of 105130221 is about 10253.3029312510. The cubic root of 105130221 is about 471.9643469311.

Adding to 105130221 its reverse (122031501), we get a palindrome (227161722).

The spelling of 105130221 in words is "one hundred five million, one hundred thirty thousand, two hundred twenty-one".