124111220 has 96 divisors (see below), whose sum is σ = 293932800. Its totient is φ = 43771904.

The previous prime is 124111219. The next prime is 124111277. The reversal of 124111220 is 22111421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 124111195 and 124111204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 461246 + ... + 461514.

It is an arithmetic number, because the mean of its divisors is an integer number (3061800).

Almost surely, 2^124111220 is an apocalyptic number.

124111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124111220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146966400).

124111220 is an abundant number, since it is smaller than the sum of its proper divisors (169821580).

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

124111220 is a wasteful number, since it uses less digits than its factorization.

124111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 124111220 is about 11140.5215317776. The cubic root of 124111220 is about 498.8121402130.

Adding to 124111220 its reverse (22111421), we get a palindrome (146222641).

It can be divided in two parts, 12411 and 1220, that added together give a palindrome (13631).

The spelling of 124111220 in words is "one hundred twenty-four million, one hundred eleven thousand, two hundred twenty".