12211102200 has 144 divisors (see below), whose sum is σ = 41608821240. Its totient is φ = 2960249600.

The previous prime is 12211102199. The next prime is 12211102217. The reversal of 12211102200 is 220111221.

It is a super-2 number, since 2×12211102200² (a number of 21 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 polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11499 + ... + 156698.

Almost surely, 2^12211102200 is an apocalyptic number.

12211102200 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 12211102200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20804410620).

12211102200 is an abundant number, since it is smaller than the sum of its proper divisors (29397719040).

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

12211102200 is a wasteful number, since it uses less digits than its factorization.

12211102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168238 (or 168218 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12211102200 its reverse (220111221), we get a palindrome (12431213421).

It can be divided in two parts, 12211 and 102200, that added together give a palindrome (114411).

The spelling of 12211102200 in words is "twelve billion, two hundred eleven million, one hundred two thousand, two hundred".