100211202121200 has 480 divisors, whose sum is σ = 326640926589120. Its totient is φ = 26258942361600.

The previous prime is 100211202121181. The next prime is 100211202121201. The reversal of 100211202121200 is 2121202112001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 100211202121200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100211202121201) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11438324820 + ... + 11438333580.

It is an arithmetic number, because the mean of its divisors is an integer number (680501930394).

Almost surely, 2^{100211202121200} is an apocalyptic number.

100211202121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100211202121200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163320463294560).

100211202121200 is an abundant number, since it is smaller than the sum of its proper divisors (226429724467920).

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

100211202121200 is a wasteful number, since it uses less digits than its factorization.

100211202121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9605 (or 9594 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 100211202121200 its reverse (2121202112001), we get a palindrome (102332404233201).

The spelling of 100211202121200 in words is "one hundred trillion, two hundred eleven billion, two hundred two million, one hundred twenty-one thousand, two hundred".