12112222211200 has 192 divisors, whose sum is σ = 30221887550400. Its totient is φ = 4796196802560.

The previous prime is 12112222211189. The next prime is 12112222211231. The reversal of 12112222211200 is 211222221121.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1480888711 + ... + 1480896889.

It is an arithmetic number, because the mean of its divisors is an integer number (157405664325).

Almost surely, 2^{12112222211200} is an apocalyptic number.

12112222211200 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 12112222211200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15110943775200).

12112222211200 is an abundant number, since it is smaller than the sum of its proper divisors (18109665339200).

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

12112222211200 is a wasteful number, since it uses less digits than its factorization.

12112222211200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12799 (or 12782 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12112222211200 its reverse (211222221121), we get a palindrome (12323444432321).

The spelling of 12112222211200 in words is "twelve trillion, one hundred twelve billion, two hundred twenty-two million, two hundred eleven thousand, two hundred".