124100220 has 48 divisors (see below), whose sum is σ = 356878368. Its totient is φ = 32198400.

The previous prime is 124100201. The next prime is 124100233. The reversal of 124100220 is 22001421.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 124100196 and 124100205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25731 + ... + 30170.

It is an arithmetic number, because the mean of its divisors is an integer number (7434966).

Almost surely, 2^124100220 is an apocalyptic number.

124100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124100220 is an abundant number, since it is smaller than the sum of its proper divisors (232778148).

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

124100220 is a wasteful number, since it uses less digits than its factorization.

124100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55950 (or 55948 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 124100220 is about 11140.0278276134. The cubic root of 124100220 is about 498.7974031741.

Adding to 124100220 its reverse (22001421), we get a palindrome (146101641).

The spelling of 124100220 in words is "one hundred twenty-four million, one hundred thousand, two hundred twenty".