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12200122200000 = 2635572904791
BaseRepresentation
bin1011000110001000111111…
…1100110010111111000000
31121012022122111022012011210
42301202033330302333000
53044341322240400000
641540354143210120
72366300254442520
oct261421774627700
947168574265153
1012200122200000
113984051a1a739
1214505702a6940
136a660b126147
143026bbdcd680
15162546e82350
hexb188ff32fc0

12200122200000 has 336 divisors, whose sum is σ = 46110621731328. Its totient is φ = 2788598400000.

The previous prime is 12200122199989. The next prime is 12200122200031. The reversal of 12200122200000 is 222100221.

It is a tau number, because it is divible by the number of its divisors (336).

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2747605 + ... + 5652395.

It is an arithmetic number, because the mean of its divisors is an integer number (137233993248).

Almost surely, 212200122200000 is an apocalyptic number.

12200122200000 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 12200122200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23055310865664).

12200122200000 is an abundant number, since it is smaller than the sum of its proper divisors (33910499531328).

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

12200122200000 is an frugal number, since it uses more digits than its factorization.

12200122200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904838 (or 2904808 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12200122200000 its reverse (222100221), we get a palindrome (12200344300221).

The spelling of 12200122200000 in words is "twelve trillion, two hundred billion, one hundred twenty-two million, two hundred thousand".