211201021100 has 18 divisors (see below), whose sum is σ = 458306216004. Its totient is φ = 84480408400.

The previous prime is 211201021069. The next prime is 211201021151. The reversal of 211201021100 is 1120102112.

211201021100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 5 ways as a sum of consecutive naturals, for example, 1056005006 + ... + 1056005205.

Almost surely, 2^211201021100 is an apocalyptic number.

211201021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211201021100 is an abundant number, since it is smaller than the sum of its proper divisors (247105194904).

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

211201021100 is a wasteful number, since it uses less digits than its factorization.

211201021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112010225 (or 2112010218 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 211201021100 its reverse (1120102112), we get a palindrome (212321123212).

The spelling of 211201021100 in words is "two hundred eleven billion, two hundred one million, twenty-one thousand, one hundred".