124144220 has 12 divisors (see below), whose sum is σ = 260702904. Its totient is φ = 49657680.

The previous prime is 124144193. The next prime is 124144259. The reversal of 124144220 is 22441421.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 6207211 = 124144220 / (1 + 2 + 4 + 1 + 4 + 4 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 124144192 and 124144201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3103586 + ... + 3103625.

It is an arithmetic number, because the mean of its divisors is an integer number (21725242).

Almost surely, 2^124144220 is an apocalyptic number.

124144220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124144220 is an abundant number, since it is smaller than the sum of its proper divisors (136558684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124144220 is a wasteful number, since it uses less digits than its factorization.

124144220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6207220 (or 6207218 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 124144220 is about 11142.0025130135. The cubic root of 124144220 is about 498.8563461060.

Adding to 124144220 its reverse (22441421), we get a palindrome (146585641).

The spelling of 124144220 in words is "one hundred twenty-four million, one hundred forty-four thousand, two hundred twenty".