201121121100200 has 96 divisors (see below), whose sum is σ = 534413324376000. Its totient is φ = 68955067914240.

The previous prime is 201121121100187. The next prime is 201121121100223. The reversal of 201121121100200 is 2001121121102.

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

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, 137661947 + ... + 139115253.

It is an arithmetic number, because the mean of its divisors is an integer number (5566805462250).

Almost surely, 2^{201121121100200} is an apocalyptic number.

201121121100200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201121121100200 is an abundant number, since it is smaller than the sum of its proper divisors (333292203275800).

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

201121121100200 is a wasteful number, since it uses less digits than its factorization.

201121121100200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552179 (or 1552170 counting only the distinct ones).

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

Adding to 201121121100200 its reverse (2001121121102), we get a palindrome (203122242221302).

The spelling of 201121121100200 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred thousand, two hundred".