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12112131110200 = 235211175910154347
BaseRepresentation
bin1011000001000001001101…
…0001011011010100111000
31120212220112020112200202221
42300100103101123110320
53041421121031011300
641432123004533424
72360033620511152
oct260202321332470
946786466480687
1012112131110200
11394a7a9281610
1214374b4251274
1369b22757aa34
142dc331c29ad2
151600e717831a
hexb041345b538

12112131110200 has 384 divisors, whose sum is σ = 33407324294400. Its totient is φ = 4034647040000.

The previous prime is 12112131110179. The next prime is 12112131110213. The reversal of 12112131110200 is 201113121121.

It is a happy number.

It is a congruent number.

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, 222839427 + ... + 222893773.

It is an arithmetic number, because the mean of its divisors is an integer number (86998240350).

Almost surely, 212112131110200 is an apocalyptic number.

12112131110200 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 12112131110200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16703662147200).

12112131110200 is an abundant number, since it is smaller than the sum of its proper divisors (21295193184200).

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

12112131110200 is a wasteful number, since it uses less digits than its factorization.

12112131110200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54551 (or 54542 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 12112131110200 its reverse (201113121121), we get a palindrome (12313244231321).

The spelling of 12112131110200 in words is "twelve trillion, one hundred twelve billion, one hundred thirty-one million, one hundred ten thousand, two hundred".