220103225 has 6 divisors (see below), whose sum is σ = 272928030. Its totient is φ = 176082560.

The previous prime is 220103203. The next prime is 220103227. The reversal of 220103225 is 522301022.

It can be written as a sum of positive squares in 3 ways, for example, as 44249104 + 175854121 = 6652^2 + 13261^2 .

It is not a de Polignac number, because 220103225 - 2¹⁸ = 219841081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220103227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4402040 + ... + 4402089.

It is an arithmetic number, because the mean of its divisors is an integer number (45488005).

Almost surely, 2^220103225 is an apocalyptic number.

220103225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220103225 is a deficient number, since it is larger than the sum of its proper divisors (52824805).

220103225 is an equidigital number, since it uses as much as digits as its factorization.

220103225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8804139 (or 8804134 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 220103225 is about 14835.8762801528. The cubic root of 220103225 is about 603.7754755513.

Adding to 220103225 its reverse (522301022), we get a palindrome (742404247).

The spelling of 220103225 in words is "two hundred twenty million, one hundred three thousand, two hundred twenty-five".