220544105 has 16 divisors (see below), whose sum is σ = 271081728. Its totient is φ = 172200000.

The previous prime is 220544099. The next prime is 220544113. The reversal of 220544105 is 501445022.

It is a happy number.

220544105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220544105 - 2¹⁴ = 220527721 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32780 + ... + 38930.

It is an arithmetic number, because the mean of its divisors is an integer number (16942608).

Almost surely, 2^220544105 is an apocalyptic number.

It is an amenable number.

220544105 is a deficient number, since it is larger than the sum of its proper divisors (50537623).

220544105 is a wasteful number, since it uses less digits than its factorization.

220544105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6328.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 220544105 is about 14850.7274232611. The cubic root of 220544105 is about 604.1783395499.

Adding to 220544105 its reverse (501445022), we get a palindrome (721989127).

The spelling of 220544105 in words is "two hundred twenty million, five hundred forty-four thousand, one hundred five".