124115220 has 96 divisors (see below), whose sum is σ = 406492800. Its totient is φ = 31352832.

The previous prime is 124115213. The next prime is 124115231. The reversal of 124115220 is 22511421.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 124115193 and 124115202.

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, 4212 + ... + 16308.

It is an arithmetic number, because the mean of its divisors is an integer number (4234300).

Almost surely, 2^124115220 is an apocalyptic number.

124115220 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 124115220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203246400).

124115220 is an abundant number, since it is smaller than the sum of its proper divisors (282377580).

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

124115220 is a wasteful number, since it uses less digits than its factorization.

124115220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12134 (or 12126 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 124115220 is about 11140.7010551401. The cubic root of 124115220 is about 498.8174989204.

Adding to 124115220 its reverse (22511421), we get a palindrome (146626641).

It can be divided in two parts, 1241 and 15220, that added together give a palindrome (16461).

The spelling of 124115220 in words is "one hundred twenty-four million, one hundred fifteen thousand, two hundred twenty".