11222122201200 has 120 divisors (see below), whose sum is σ = 39942442391600. Its totient is φ = 2992565917440.

The previous prime is 11222122201189. The next prime is 11222122201207. The reversal of 11222122201200 is 210222122211.

It is a happy number.

11222122201200 is a `hidden beast` number, since 11 + 22 + 212 + 220 + 1 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222122201207) by changing a digit.

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, 519531895 + ... + 519553494.

Almost surely, 2^{11222122201200} is an apocalyptic number.

11222122201200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11222122201200 is an abundant number, since it is smaller than the sum of its proper divisors (28720320190400).

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

11222122201200 is a wasteful number, since it uses less digits than its factorization.

11222122201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039085416 (or 1039085399 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11222122201200 its reverse (210222122211), we get a palindrome (11432344323411).

The spelling of 11222122201200 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred one thousand, two hundred".