124020220 has 24 divisors (see below), whose sum is σ = 274150800. Its totient is φ = 46996992.

The previous prime is 124020179. The next prime is 124020271. The reversal of 124020220 is 22020421.

It is a self number, because there is not a number n which added to its sum of digits gives 124020220.

It is a congruent number.

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, 162805 + ... + 163564.

It is an arithmetic number, because the mean of its divisors is an integer number (11422950).

Almost surely, 2^124020220 is an apocalyptic number.

124020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124020220 is an abundant number, since it is smaller than the sum of its proper divisors (150130580).

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

124020220 is a wasteful number, since it uses less digits than its factorization.

124020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326397 (or 326395 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 124020220 is about 11136.4365934530. The cubic root of 124020220 is about 498.6901985028.

Adding to 124020220 its reverse (22020421), we get a palindrome (146040641).

The spelling of 124020220 in words is "one hundred twenty-four million, twenty thousand, two hundred twenty".