20201200200120 has 32 divisors (see below), whose sum is σ = 60603600600720. Its totient is φ = 5386986720000.

The previous prime is 20201200200079. The next prime is 20201200200127. The reversal of 20201200200120 is 2100200210202.

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 = 20201200200096 and 20201200200105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201200200127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84171667381 + ... + 84171667620.

Almost surely, 2^{20201200200120} is an apocalyptic number.

20201200200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201200200120 is an abundant number, since it is smaller than the sum of its proper divisors (40402400400600).

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

20201200200120 is a wasteful number, since it uses less digits than its factorization.

20201200200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168343335015 (or 168343335011 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20201200200120 its reverse (2100200210202), we get a palindrome (22301400410322).

The spelling of 20201200200120 in words is "twenty trillion, two hundred one billion, two hundred million, two hundred thousand, one hundred twenty".