20111201210200 has 48 divisors (see below), whose sum is σ = 46759486509360. Its totient is φ = 8044318128000.

The previous prime is 20111201210119. The next prime is 20111201210203. The reversal of 20111201210200 is 201210211102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111201210203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9174885 + ... + 11153515.

It is an arithmetic number, because the mean of its divisors is an integer number (974155968945).

Almost surely, 2^{20111201210200} is an apocalyptic number.

20111201210200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20111201210200 is an abundant number, since it is smaller than the sum of its proper divisors (26648285299160).

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

20111201210200 is a wasteful number, since it uses less digits than its factorization.

20111201210200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029468 (or 2029459 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20111201210200 its reverse (201210211102), we get a palindrome (20312411421302).

The spelling of 20111201210200 in words is "twenty trillion, one hundred eleven billion, two hundred one million, two hundred ten thousand, two hundred".