124128122 has 16 divisors (see below), whose sum is σ = 188778600. Its totient is φ = 61205760.

The previous prime is 124128113. The next prime is 124128131. The reversal of 124128122 is 221821421.

It is an interprime number because it is at equal distance from previous prime (124128113) and next prime (124128131).

It can be written as a sum of positive squares in 4 ways, for example, as 101384761 + 22743361 = 10069^2 + 4769^2 .

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, 95654 + ... + 96942.

Almost surely, 2^124128122 is an apocalyptic number.

124128122 is a deficient number, since it is larger than the sum of its proper divisors (64650478).

124128122 is a wasteful number, since it uses less digits than its factorization.

124128122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921.

The product of its digits is 512, while the sum is 23.

The square root of 124128122 is about 11141.2800880330. The cubic root of 124128122 is about 498.8347826464.

Adding to 124128122 its reverse (221821421), we get a palindrome (345949543).

The spelling of 124128122 in words is "one hundred twenty-four million, one hundred twenty-eight thousand, one hundred twenty-two".