220502105 has 8 divisors (see below), whose sum is σ = 265545864. Its totient is φ = 175772800.

The previous prime is 220502063. The next prime is 220502111. The reversal of 220502105 is 501205022.

It can be written as a sum of positive squares in 4 ways, for example, as 34234201 + 186267904 = 5851^2 + 13648^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220502105 - 2¹⁴ = 220485721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77066 + ... + 79875.

It is an arithmetic number, because the mean of its divisors is an integer number (33193233).

Almost surely, 2^220502105 is an apocalyptic number.

It is an amenable number.

220502105 is a deficient number, since it is larger than the sum of its proper divisors (45043759).

220502105 is a wasteful number, since it uses less digits than its factorization.

220502105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157227.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 220502105 is about 14849.3132837852. The cubic root of 220502105 is about 604.1399842569.

Adding to 220502105 its reverse (501205022), we get a palindrome (721707127).

The spelling of 220502105 in words is "two hundred twenty million, five hundred two thousand, one hundred five".