| Base | Representation |
|---|---|
| bin | 11011100000110011111111… |
| … | …111110011001011101101100 |
| 3 | 120212102200121022120122212200 |
| 4 | 123200303333332121131230 |
| 5 | 111324444311440211340 |
| 6 | 1105203334200501500 |
| 7 | 34326054111010014 |
| oct | 3340637776313554 |
| 9 | 525380538518780 |
| 10 | 121002113210220 |
| 11 | 35611787430230 |
| 12 | 116a302aa7a890 |
| 13 | 52695b145a158 |
| 14 | 21c4768000c44 |
| 15 | dec821693330 |
| hex | 6e0cfff9976c |
121002113210220 has 288 divisors, whose sum is σ = 413072934543360. Its totient is φ = 28413048430080.
The previous prime is 121002113210207. The next prime is 121002113210239. The reversal of 121002113210220 is 22012311200121.
121002113210220 is a `hidden beast` number, since 1 + 2 + 100 + 21 + 1 + 321 + 0 + 220 = 666.
It is a super-2 number, since 2×1210021132102202 (a number of 29 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 121002113210193 and 121002113210202.
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, 12633661 + ... + 20040299.
It is an arithmetic number, because the mean of its divisors is an integer number (1434281022720).
Almost surely, 2121002113210220 is an apocalyptic number.
121002113210220 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 121002113210220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206536467271680).
121002113210220 is an abundant number, since it is smaller than the sum of its proper divisors (292070821333140).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121002113210220 is a wasteful number, since it uses less digits than its factorization.
121002113210220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7406925 (or 7406920 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 18.
Adding to 121002113210220 its reverse (22012311200121), we get a palindrome (143014424410341).
The spelling of 121002113210220 in words is "one hundred twenty-one trillion, two billion, one hundred thirteen million, two hundred ten thousand, two hundred twenty".
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