11022201221200 has 240 divisors, whose sum is σ = 29172496340736. Its totient is φ = 3976593868800.

The previous prime is 11022201221183. The next prime is 11022201221201. The reversal of 11022201221200 is 212210222011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022201221201) 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 47 ways as a sum of consecutive naturals, for example, 149780415 + ... + 149853985.

Almost surely, 2^{11022201221200} is an apocalyptic number.

11022201221200 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 11022201221200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14586248170368).

11022201221200 is an abundant number, since it is smaller than the sum of its proper divisors (18150295119536).

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

11022201221200 is a wasteful number, since it uses less digits than its factorization.

11022201221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74262 (or 74251 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11022201221200 its reverse (212210222011), we get a palindrome (11234411443211).

The spelling of 11022201221200 in words is "eleven trillion, twenty-two billion, two hundred one million, two hundred twenty-one thousand, two hundred".