201112021021100 has 72 divisors (see below), whose sum is σ = 499563560885760. Its totient is φ = 68841299085120.

The previous prime is 201112021021099. The next prime is 201112021021157. The reversal of 201112021021100 is 1120120211102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 231636884 + ... + 232503483.

It is an arithmetic number, because the mean of its divisors is an integer number (6938382790080).

Almost surely, 2^{201112021021100} is an apocalyptic number.

201112021021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201112021021100 is an abundant number, since it is smaller than the sum of its proper divisors (298451539864660).

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

201112021021100 is a wasteful number, since it uses less digits than its factorization.

201112021021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464141007 (or 464141000 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201112021021100 its reverse (1120120211102), we get a palindrome (202232141232202).

The spelling of 201112021021100 in words is "two hundred one trillion, one hundred twelve billion, twenty-one million, twenty-one thousand, one hundred".