11221212020200 has 192 divisors, whose sum is σ = 32232034517760. Its totient is φ = 3537823979520.

The previous prime is 11221212020197. The next prime is 11221212020209. The reversal of 11221212020200 is 202021212211.

It is a happy number.

11221212020200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11221212020209) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3614452 + ... + 5958748.

It is an arithmetic number, because the mean of its divisors is an integer number (167875179780).

Almost surely, 2^{11221212020200} is an apocalyptic number.

11221212020200 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 11221212020200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16116017258880).

11221212020200 is an abundant number, since it is smaller than the sum of its proper divisors (21010822497560).

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

11221212020200 is a wasteful number, since it uses less digits than its factorization.

11221212020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344596 (or 2344587 counting only the distinct ones).

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

Adding to 11221212020200 its reverse (202021212211), we get a palindrome (11423233232411).

The spelling of 11221212020200 in words is "eleven trillion, two hundred twenty-one billion, two hundred twelve million, twenty thousand, two hundred".