11212201120 has 96 divisors (see below), whose sum is σ = 27183776256. Its totient is φ = 4367616000.

The previous prime is 11212201111. The next prime is 11212201123. The reversal of 11212201120 is 2110221211.

It is a self number, because there is not a number n which added to its sum of digits gives 11212201120.

It is not an unprimeable number, because it can be changed into a prime (11212201123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4767945 + ... + 4770295.

It is an arithmetic number, because the mean of its divisors is an integer number (283164336).

Almost surely, 2^11212201120 is an apocalyptic number.

11212201120 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 11212201120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13591888128).

11212201120 is an abundant number, since it is smaller than the sum of its proper divisors (15971575136).

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

11212201120 is a wasteful number, since it uses less digits than its factorization.

11212201120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134 (or 3126 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11212201120 its reverse (2110221211), we get a palindrome (13322422331).

The spelling of 11212201120 in words is "eleven billion, two hundred twelve million, two hundred one thousand, one hundred twenty".