11211211110200 has 384 divisors, whose sum is σ = 27371040998400. Its totient is φ = 4267710720000.

The previous prime is 11211211110163. The next prime is 11211211110283. The reversal of 11211211110200 is 201111211211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13556482187 + ... + 13556483013.

It is an arithmetic number, because the mean of its divisors is an integer number (71278752600).

Almost surely, 2^{11211211110200} is an apocalyptic number.

11211211110200 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 11211211110200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13685520499200).

11211211110200 is an abundant number, since it is smaller than the sum of its proper divisors (16159829888200).

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

11211211110200 is a wasteful number, since it uses less digits than its factorization.

11211211110200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231 (or 1222 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11211211110200 its reverse (201111211211), we get a palindrome (11412322321411).

The spelling of 11211211110200 in words is "eleven trillion, two hundred eleven billion, two hundred eleven million, one hundred ten thousand, two hundred".