12102002100120 has 128 divisors (see below), whose sum is σ = 37686539520000. Its totient is φ = 3105649674240.

The previous prime is 12102002100101. The next prime is 12102002100121. The reversal of 12102002100120 is 2100120020121.

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 = 12102002100096 and 12102002100105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102002100121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8421345 + ... + 9753104.

It is an arithmetic number, because the mean of its divisors is an integer number (294426090000).

Almost surely, 2^{12102002100120} is an apocalyptic number.

12102002100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102002100120 is an abundant number, since it is smaller than the sum of its proper divisors (25584537419880).

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

12102002100120 is a wasteful number, since it uses less digits than its factorization.

12102002100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18174673 (or 18174669 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12102002100120 its reverse (2100120020121), we get a palindrome (14202122120241).

The spelling of 12102002100120 in words is "twelve trillion, one hundred two billion, two million, one hundred thousand, one hundred twenty".