| Base | Representation |
|---|---|
| bin | 11011100100000000110011… |
| … | …100100010001101100110000 |
| 3 | 120220012201020010222020121121 |
| 4 | 123210000303210101230300 |
| 5 | 111342100200130010000 |
| 6 | 1105452343403432024 |
| 7 | 34351000466553430 |
| oct | 3344006344215460 |
| 9 | 526181203866547 |
| 10 | 121222022110000 |
| 11 | 35696a75258509 |
| 12 | 11719781b25614 |
| 13 | 52842593082a6 |
| 14 | 21d126a2522c0 |
| 15 | e033e288ab1a |
| hex | 6e4033911b30 |
121222022110000 has 400 divisors, whose sum is σ = 347978931097600. Its totient is φ = 40018872960000.
The previous prime is 121222022109911. The next prime is 121222022110001. The reversal of 121222022110000 is 11220222121.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (400).
It is a Harshad number since it is a multiple of its sum of digits (16).
It is not an unprimeable number, because it can be changed into a prime (121222022110001) by changing a digit.
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 79 ways as a sum of consecutive naturals, for example, 431689642 + ... + 431970358.
It is an arithmetic number, because the mean of its divisors is an integer number (869947327744).
Almost surely, 2121222022110000 is an apocalyptic number.
121222022110000 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 121222022110000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173989465548800).
121222022110000 is an abundant number, since it is smaller than the sum of its proper divisors (226756908987600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121222022110000 is a wasteful number, since it uses less digits than its factorization.
121222022110000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 280982 (or 280961 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 16.
Adding to 121222022110000 its reverse (11220222121), we get a palindrome (121233242332121).
The spelling of 121222022110000 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, twenty-two million, one hundred ten thousand".
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