124044100220 has 24 divisors (see below), whose sum is σ = 260662820208. Its totient is φ = 49585219200.

The previous prime is 124044100183. The next prime is 124044100223. The reversal of 124044100220 is 22001440421.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 124044100192 and 124044100201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124044100223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1994921 + ... + 2056160.

It is an arithmetic number, because the mean of its divisors is an integer number (10860950842).

Almost surely, 2^124044100220 is an apocalyptic number.

124044100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124044100220 is an abundant number, since it is smaller than the sum of its proper divisors (136618719988).

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

124044100220 is a wasteful number, since it uses less digits than its factorization.

124044100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4052621 (or 4052619 counting only the distinct ones).

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

Adding to 124044100220 its reverse (22001440421), we get a palindrome (146045540641).

The spelling of 124044100220 in words is "one hundred twenty-four billion, forty-four million, one hundred thousand, two hundred twenty".