22103225 has 6 divisors (see below), whose sum is σ = 27408030. Its totient is φ = 17682560.

The previous prime is 22103219. The next prime is 22103227. The reversal of 22103225 is 52230122.

It can be written as a sum of positive squares in 3 ways, for example, as 7441984 + 14661241 = 2728^2 + 3829^2 .

It is not a de Polignac number, because 22103225 - 2⁴ = 22103209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22103227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 442040 + ... + 442089.

It is an arithmetic number, because the mean of its divisors is an integer number (4568005).

Almost surely, 2^22103225 is an apocalyptic number.

22103225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22103225 is a deficient number, since it is larger than the sum of its proper divisors (5304805).

22103225 is an equidigital number, since it uses as much as digits as its factorization.

22103225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884139 (or 884134 counting only the distinct ones).

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

The square root of 22103225 is about 4701.4067043811. The cubic root of 22103225 is about 280.6414926245.

Adding to 22103225 its reverse (52230122), we get a palindrome (74333347).

It can be divided in two parts, 2 and 2103225, that multiplied together give a triangular number (4206450 = T₂₉₀₀).

The spelling of 22103225 in words is "twenty-two million, one hundred three thousand, two hundred twenty-five".