| Base | Representation |
|---|---|
| bin | 1011000110110001111110… |
| … | …0110100000100110000000 |
| 3 | 1121020101001002202122210000 |
| 4 | 2301230133212200212000 |
| 5 | 3100031334241224300 |
| 6 | 41545413451440000 |
| 7 | 2400136664133153 |
| oct | 261543746404600 |
| 9 | 47211032678700 |
| 10 | 12211122211200 |
| 11 | 3988787165990 |
| 12 | 1452720156000 |
| 13 | 6a7672055903 |
| 14 | 303042ca3c9a |
| 15 | 16298ca24c00 |
| hex | b1b1f9a0980 |
12211122211200 has 480 divisors, whose sum is σ = 49158258324120. Its totient is φ = 2960271360000.
The previous prime is 12211122211103. The next prime is 12211122211229. The reversal of 12211122211200 is 211222111221.
12211122211200 is a `hidden beast` number, since 1 + 221 + 11 + 22 + 211 + 200 = 666.
It is a tau number, because it is divible by the number of its divisors (480).
It is a super-2 number, since 2×122111222112002 (a number of 27 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 709800 + ... + 4992600.
Almost surely, 212211122211200 is an apocalyptic number.
12211122211200 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 12211122211200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24579129162060).
12211122211200 is an abundant number, since it is smaller than the sum of its proper divisors (36947136112920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12211122211200 is a wasteful number, since it uses less digits than its factorization.
12211122211200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4282848 (or 4282822 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 18.
Adding to 12211122211200 its reverse (211222111221), we get a palindrome (12422344322421).
The spelling of 12211122211200 in words is "twelve trillion, two hundred eleven billion, one hundred twenty-two million, two hundred eleven thousand, two hundred".
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