12124200220 has 96 divisors (see below), whose sum is σ = 29089622016. Its totient is φ = 4201612800.

The previous prime is 12124200217. The next prime is 12124200247. The reversal of 12124200220 is 2200242121.

It is a junction number, because it is equal to n+sod(n) for n = 12124200194 and 12124200203.

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, 1417597 + ... + 1426123.

It is an arithmetic number, because the mean of its divisors is an integer number (303016896).

Almost surely, 2^12124200220 is an apocalyptic number.

12124200220 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 12124200220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14544811008).

12124200220 is an abundant number, since it is smaller than the sum of its proper divisors (16965421796).

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

12124200220 is a wasteful number, since it uses less digits than its factorization.

12124200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8851 (or 8849 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12124200220 its reverse (2200242121), we get a palindrome (14324442341).

The spelling of 12124200220 in words is "twelve billion, one hundred twenty-four million, two hundred thousand, two hundred twenty".