105530345221 has 8 divisors (see below), whose sum is σ = 122650280640. Its totient is φ = 88921452768.

The previous prime is 105530345213. The next prime is 105530345227. The reversal of 105530345221 is 122543035501.

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 105530345221 - 2³ = 105530345213 is a prime.

It is a super-2 number, since 2×105530345221² (a number of 23 digits) 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 (105530345227) 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, 127760296 + ... + 127761121.

It is an arithmetic number, because the mean of its divisors is an integer number (15331285080).

Almost surely, 2^105530345221 is an apocalyptic number.

It is an amenable number.

105530345221 is a deficient number, since it is larger than the sum of its proper divisors (17119935419).

105530345221 is an equidigital number, since it uses as much as digits as its factorization.

105530345221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255521483.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 105530345221 in words is "one hundred five billion, five hundred thirty million, three hundred forty-five thousand, two hundred twenty-one".