11001220012000 has 192 divisors, whose sum is σ = 27600373854144. Its totient is φ = 4308511334400.

The previous prime is 11001220011983. The next prime is 11001220012021. The reversal of 11001220012000 is 21002210011.

11001220012000 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 (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39866499 + ... + 40141501.

It is an arithmetic number, because the mean of its divisors is an integer number (143751947157).

Almost surely, 2^{11001220012000} is an apocalyptic number.

11001220012000 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 11001220012000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13800186927072).

11001220012000 is an abundant number, since it is smaller than the sum of its proper divisors (16599153842144).

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

11001220012000 is a wasteful number, since it uses less digits than its factorization.

11001220012000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275238 (or 275220 counting only the distinct ones).

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

Adding to 11001220012000 its reverse (21002210011), we get a palindrome (11022222222011).

The spelling of 11001220012000 in words is "eleven trillion, one billion, two hundred twenty million, twelve thousand".