| Base | Representation |
|---|---|
| bin | 10001110010001100001… |
| … | …001111010001110111000 |
| 3 | 11022211111210101020202200 |
| 4 | 101302030021322032320 |
| 5 | 130010401230320440 |
| 6 | 2333233554230200 |
| 7 | 154203216423036 |
| oct | 21621411721670 |
| 9 | 4284453336680 |
| 10 | 1222122120120 |
| 11 | 4313320923a0 |
| 12 | 178a32285360 |
| 13 | 8b326826905 |
| 14 | 432185b7556 |
| 15 | 21bcbddcc30 |
| hex | 11c8c27a3b8 |
1222122120120 has 384 divisors, whose sum is σ = 4378727808000. Its totient is φ = 293159347200.
The previous prime is 1222122120083. The next prime is 1222122120133. The reversal of 1222122120120 is 210212212221.
It is a happy number.
1222122120120 is a `hidden beast` number, since 1 + 2 + 221 + 221 + 201 + 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 = 1222122120093 and 1222122120102.
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 95 ways as a sum of consecutive naturals, for example, 159897019 + ... + 159904661.
It is an arithmetic number, because the mean of its divisors is an integer number (11402937000).
Almost surely, 21222122120120 is an apocalyptic number.
1222122120120 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 1222122120120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2189363904000).
1222122120120 is an abundant number, since it is smaller than the sum of its proper divisors (3156605687880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1222122120120 is a wasteful number, since it uses less digits than its factorization.
1222122120120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8091 (or 8084 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 18.
Adding to 1222122120120 its reverse (210212212221), we get a palindrome (1432334332341).
The spelling of 1222122120120 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred twenty thousand, one hundred twenty".
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