12100120002 has 96 divisors (see below), whose sum is σ = 27862548480. Its totient is φ = 3787106400.

The previous prime is 12100120001. The next prime is 12100120009. The reversal of 12100120002 is 20002100121.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (12100120001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10512127 + ... + 10513277.

It is an arithmetic number, because the mean of its divisors is an integer number (290234880).

Almost surely, 2^12100120002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12100120002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13931274240).

12100120002 is an abundant number, since it is smaller than the sum of its proper divisors (15762428478).

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

12100120002 is a wasteful number, since it uses less digits than its factorization.

12100120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628 (or 1625 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12100120002 its reverse (20002100121), we get a palindrome (32102220123).

The spelling of 12100120002 in words is "twelve billion, one hundred million, one hundred twenty thousand, two".