124400204220 has 48 divisors (see below), whose sum is σ = 349765926048. Its totient is φ = 33035735040.

The previous prime is 124400204171. The next prime is 124400204233. The reversal of 124400204220 is 22402004421.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4287069 + ... + 4315988.

It is an arithmetic number, because the mean of its divisors is an integer number (7286790126).

Almost surely, 2^124400204220 is an apocalyptic number.

124400204220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124400204220 is an abundant number, since it is smaller than the sum of its proper divisors (225365721828).

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

124400204220 is a wasteful number, since it uses less digits than its factorization.

124400204220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8603310 (or 8603308 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 124400204220 its reverse (22402004421), we get a palindrome (146802208641).

The spelling of 124400204220 in words is "one hundred twenty-four billion, four hundred million, two hundred four thousand, two hundred twenty".