211200120020100 has 72 divisors (see below), whose sum is σ = 612667836748800. Its totient is φ = 56172982282880.

The previous prime is 211200120020093. The next prime is 211200120020167. The reversal of 211200120020100 is 1020021002112.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 918945675 + ... + 919175474.

It is an arithmetic number, because the mean of its divisors is an integer number (8509275510400).

Almost surely, 2^{211200120020100} is an apocalyptic number.

211200120020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211200120020100 is an abundant number, since it is smaller than the sum of its proper divisors (401467716728700).

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

211200120020100 is a wasteful number, since it uses less digits than its factorization.

211200120020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838121549 (or 1838121542 counting only the distinct ones).

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

Adding to 211200120020100 its reverse (1020021002112), we get a palindrome (212220141022212).

The spelling of 211200120020100 in words is "two hundred eleven trillion, two hundred billion, one hundred twenty million, twenty thousand, one hundred".