211505450200 has 192 divisors, whose sum is σ = 577826409600. Its totient is φ = 71168025600.

The previous prime is 211505450183. The next prime is 211505450249. The reversal of 211505450200 is 2054505112.

211505450200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 1738564 + ... + 1856236.

It is an arithmetic number, because the mean of its divisors is an integer number (3009512550).

Almost surely, 2^211505450200 is an apocalyptic number.

211505450200 is a gapful number since it is divisible by the number (20) 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 211505450200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288913204800).

211505450200 is an abundant number, since it is smaller than the sum of its proper divisors (366320959400).

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

211505450200 is a wasteful number, since it uses less digits than its factorization.

211505450200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117762 (or 117753 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 211505450200 its reverse (2054505112), we get a palindrome (213559955312).

The spelling of 211505450200 in words is "two hundred eleven billion, five hundred five million, four hundred fifty thousand, two hundred".