11021200111200 has 144 divisors (see below), whose sum is σ = 35884999213056. Its totient is φ = 2938086105600.

The previous prime is 11021200111183. The next prime is 11021200111237. The reversal of 11021200111200 is 211100212011.

It is a super-2 number, since 2×11021200111200² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 23 ways as a sum of consecutive naturals, for example, 7148449 + ... + 8552351.

It is an arithmetic number, because the mean of its divisors is an integer number (249201383424).

Almost surely, 2^{11021200111200} is an apocalyptic number.

11021200111200 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 11021200111200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17942499606528).

11021200111200 is an abundant number, since it is smaller than the sum of its proper divisors (24863799101856).

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

11021200111200 is a wasteful number, since it uses less digits than its factorization.

11021200111200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407197 (or 1407184 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11021200111200 its reverse (211100212011), we get a palindrome (11232300323211).

The spelling of 11021200111200 in words is "eleven trillion, twenty-one billion, two hundred million, one hundred eleven thousand, two hundred".