124222005 has 40 divisors (see below), whose sum is σ = 228141144. Its totient is φ = 64627200.

The previous prime is 124222003. The next prime is 124222027. The reversal of 124222005 is 500222421.

It can be written as a sum of positive squares in 4 ways, for example, as 7387524 + 116834481 = 2718^2 + 10809^2 .

It is not a de Polignac number, because 124222005 - 2¹ = 124222003 is a prime.

It is a super-2 number, since 2×124222005² = 30862213052440050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124222003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12865 + ... + 20345.

Almost surely, 2^124222005 is an apocalyptic number.

124222005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

124222005 is a deficient number, since it is larger than the sum of its proper divisors (103919139).

124222005 is an equidigital number, since it uses as much as digits as its factorization.

124222005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7539 (or 7530 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 124222005 is about 11145.4925866917. The cubic root of 124222005 is about 498.9605137677.

Adding to 124222005 its reverse (500222421), we get a palindrome (624444426).

The spelling of 124222005 in words is "one hundred twenty-four million, two hundred twenty-two thousand, five".