12020100120120 has 64 divisors (see below), whose sum is σ = 36075904957440. Its totient is φ = 3203972956800.

The previous prime is 12020100120089. The next prime is 12020100120139. The reversal of 12020100120120 is 2102100102021.

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 = 12020100120096 and 12020100120105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21394576 + ... + 21949215.

It is an arithmetic number, because the mean of its divisors is an integer number (563686014960).

Almost surely, 2^{12020100120120} is an apocalyptic number.

12020100120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020100120120 is an abundant number, since it is smaller than the sum of its proper divisors (24055804837320).

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

12020100120120 is a wasteful number, since it uses less digits than its factorization.

12020100120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43346116 (or 43346112 counting only the distinct ones).

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

Adding to 12020100120120 its reverse (2102100102021), we get a palindrome (14122200222141).

The spelling of 12020100120120 in words is "twelve trillion, twenty billion, one hundred million, one hundred twenty thousand, one hundred twenty".