11000021212000 has 96 divisors (see below), whose sum is σ = 27053533319904. Its totient is φ = 4395697344000.

The previous prime is 11000021211989. The next prime is 11000021212007. The reversal of 11000021212000 is 21212000011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000021212007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2737279 + ... + 5430721.

It is an arithmetic number, because the mean of its divisors is an integer number (281807638749).

Almost surely, 2^{11000021212000} is an apocalyptic number.

11000021212000 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 11000021212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13526766659952).

11000021212000 is an abundant number, since it is smaller than the sum of its proper divisors (16053512107904).

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

11000021212000 is a wasteful number, since it uses less digits than its factorization.

11000021212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2694489 (or 2694471 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11000021212000 its reverse (21212000011), we get a palindrome (11021233212011).

The spelling of 11000021212000 in words is "eleven trillion, twenty-one million, two hundred twelve thousand".