12100102120 has 64 divisors (see below), whose sum is σ = 28808524800. Its totient is φ = 4561240320.

The previous prime is 12100102117. The next prime is 12100102127. The reversal of 12100102120 is 2120100121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 12100102097 and 12100102106.

It is not an unprimeable number, because it can be changed into a prime (12100102127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103482 + ... + 186838.

It is an arithmetic number, because the mean of its divisors is an integer number (450133200).

Almost surely, 2^12100102120 is an apocalyptic number.

12100102120 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 12100102120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14404262400).

12100102120 is an abundant number, since it is smaller than the sum of its proper divisors (16708422680).

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

12100102120 is a wasteful number, since it uses less digits than its factorization.

12100102120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83578 (or 83574 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12100102120 its reverse (2120100121), we get a palindrome (14220202241).

The spelling of 12100102120 in words is "twelve billion, one hundred million, one hundred two thousand, one hundred twenty".