| Base | Representation |
|---|---|
| bin | 11011100011101100011000… |
| … | …111110010000111010010000 |
| 3 | 120220010121122102201121200210 |
| 4 | 123203230120332100322100 |
| 5 | 111341220301340214300 |
| 6 | 1105434320252244120 |
| 7 | 34346263330216662 |
| oct | 3343543076207220 |
| 9 | 526117572647623 |
| 10 | 121200101101200 |
| 11 | 35688746434110 |
| 12 | 11715484770640 |
| 13 | 5282174952474 |
| 14 | 21d018ab94532 |
| 15 | e02a5d162050 |
| hex | 6e3b18f90e90 |
121200101101200 has 480 divisors, whose sum is σ = 433721572935552. Its totient is φ = 28681103360000.
The previous prime is 121200101101193. The next prime is 121200101101207. The reversal of 121200101101200 is 2101101002121.
It is an interprime number because it is at equal distance from previous prime (121200101101193) and next prime (121200101101207).
It is a super-2 number, since 2×1212001011012002 (a number of 29 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is not an unprimeable number, because it can be changed into a prime (121200101101207) by changing a digit.
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 95 ways as a sum of consecutive naturals, for example, 137381500 + ... + 138260900.
Almost surely, 2121200101101200 is an apocalyptic number.
121200101101200 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 121200101101200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216860786467776).
121200101101200 is an abundant number, since it is smaller than the sum of its proper divisors (312521471834352).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121200101101200 is a wasteful number, since it uses less digits than its factorization.
121200101101200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 879683 (or 879672 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 12.
Adding to 121200101101200 its reverse (2101101002121), we get a palindrome (123301202103321).
The spelling of 121200101101200 in words is "one hundred twenty-one trillion, two hundred billion, one hundred one million, one hundred one thousand, two hundred".
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