| Base | Representation |
|---|---|
| bin | 11011100000111101011010… |
| … | …011101010110111000001000 |
| 3 | 120212110122200202120021000100 |
| 4 | 123200331122131112320020 |
| 5 | 111330131012112210440 |
| 6 | 1105212125202205400 |
| 7 | 34326562436413332 |
| oct | 3340753235267010 |
| 9 | 525418622507010 |
| 10 | 121012221210120 |
| 11 | 35615aa4100159 |
| 12 | 116a4b90053860 |
| 13 | 526a53262c496 |
| 14 | 21c5046638452 |
| 15 | decc13c86230 |
| hex | 6e0f5a756e08 |
121012221210120 has 192 divisors, whose sum is σ = 393768096883200. Its totient is φ = 32230683302400.
The previous prime is 121012221210113. The next prime is 121012221210121. The reversal of 121012221210120 is 21012122210121.
121012221210120 is a `hidden beast` number, since 1 + 210 + 1 + 2 + 221 + 210 + 1 + 20 = 666.
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 = 121012221210093 and 121012221210102.
It is not an unprimeable number, because it can be changed into a prime (121012221210121) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3275628369 + ... + 3275665311.
It is an arithmetic number, because the mean of its divisors is an integer number (2050875504600).
Almost surely, 2121012221210120 is an apocalyptic number.
121012221210120 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 121012221210120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196884048441600).
121012221210120 is an abundant number, since it is smaller than the sum of its proper divisors (272755875673080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121012221210120 is a wasteful number, since it uses less digits than its factorization.
121012221210120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 47780 (or 47773 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 18.
Adding to 121012221210120 its reverse (21012122210121), we get a palindrome (142024343420241).
The spelling of 121012221210120 in words is "one hundred twenty-one trillion, twelve billion, two hundred twenty-one million, two hundred ten thousand, one hundred twenty".
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