201100200100120 has 16 divisors (see below), whose sum is σ = 452475450225360. Its totient is φ = 80440080040032.

The previous prime is 201100200100103. The next prime is 201100200100127. The reversal of 201100200100120 is 21001002001102.

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 = 201100200100097 and 201100200100106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201100200100127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2513752501212 + ... + 2513752501291.

It is an arithmetic number, because the mean of its divisors is an integer number (28279715639085).

Almost surely, 2^{201100200100120} is an apocalyptic number.

201100200100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201100200100120 is an abundant number, since it is smaller than the sum of its proper divisors (251375250125240).

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

201100200100120 is a wasteful number, since it uses less digits than its factorization.

201100200100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5027505002514 (or 5027505002510 counting only the distinct ones).

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

Adding to 201100200100120 its reverse (21001002001102), we get a palindrome (222101202101222).

The spelling of 201100200100120 in words is "two hundred one trillion, one hundred billion, two hundred million, one hundred thousand, one hundred twenty".