12211201200 has 480 divisors, whose sum is σ = 45334598400. Its totient is φ = 2778624000.

The previous prime is 12211201199. The next prime is 12211201213. The reversal of 12211201200 is 210211221.

It is a super-2 number, since 2×12211201200² (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 an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 45394666 + ... + 45394934.

It is an arithmetic number, because the mean of its divisors is an integer number (94447080).

Almost surely, 2^12211201200 is an apocalyptic number.

12211201200 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 12211201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22667299200).

12211201200 is an abundant number, since it is smaller than the sum of its proper divisors (33123397200).

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

12211201200 is a wasteful number, since it uses less digits than its factorization.

12211201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501 (or 490 counting only the distinct ones).

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

Adding to 12211201200 its reverse (210211221), we get a palindrome (12421412421).

The spelling of 12211201200 in words is "twelve billion, two hundred eleven million, two hundred one thousand, two hundred".