105480221 has 16 divisors (see below), whose sum is σ = 136045440. Its totient is φ = 79356480.

The previous prime is 105480217. The next prime is 105480233. The reversal of 105480221 is 122084501.

It is not a de Polignac number, because 105480221 - 2² = 105480217 is a prime.

It is a super-2 number, since 2×105480221² = 22252154044417682, 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 (105480521) 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, 21386 + ... + 25851.

It is an arithmetic number, because the mean of its divisors is an integer number (8502840).

Almost surely, 2^105480221 is an apocalyptic number.

105480221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

105480221 is a deficient number, since it is larger than the sum of its proper divisors (30565219).

105480221 is a wasteful number, since it uses less digits than its factorization.

105480221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47284.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 105480221 is about 10270.3564203001. The cubic root of 105480221 is about 472.4875220429.

The spelling of 105480221 in words is "one hundred five million, four hundred eighty thousand, two hundred twenty-one".