202111200120 has 64 divisors (see below), whose sum is σ = 606393684000. Its totient is φ = 53890979328.

The previous prime is 202111200107. The next prime is 202111200157. The reversal of 202111200120 is 21002111202.

202111200120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 202111200096 and 202111200105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1216626 + ... + 1372734.

Almost surely, 2^202111200120 is an apocalyptic number.

202111200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202111200120 is an abundant number, since it is smaller than the sum of its proper divisors (404282483880).

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

202111200120 is a wasteful number, since it uses less digits than its factorization.

202111200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166912 (or 166908 counting only the distinct ones).

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

Adding to 202111200120 its reverse (21002111202), we get a palindrome (223113311322).

The spelling of 202111200120 in words is "two hundred two billion, one hundred eleven million, two hundred thousand, one hundred twenty".