| Base | Representation |
|---|---|
| bin | 111000011001001010… |
| … | …0000101111011000110 |
| 3 | 102120120220001121011200 |
| 4 | 1300302110011323012 |
| 5 | 3441004410242410 |
| 6 | 131344542043330 |
| 7 | 11515023214410 |
| oct | 1606224057306 |
| 9 | 376526047150 |
| 10 | 121103212230 |
| 11 | 473a5673870 |
| 12 | 1b579279546 |
| 13 | b55c921180 |
| 14 | 5c0ba7d9b0 |
| 15 | 323bc733c0 |
| hex | 1c32505ec6 |
121103212230 has 768 divisors, whose sum is σ = 443997904896. Its totient is φ = 22091304960.
The previous prime is 121103212211. The next prime is 121103212231. The reversal of 121103212230 is 32212301121.
121103212230 is a `hidden beast` number, since 1 + 2 + 110 + 321 + 2 + 230 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121103212231) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 156666124 + ... + 156666896.
It is an arithmetic number, because the mean of its divisors is an integer number (578122272).
Almost surely, 2121103212230 is an apocalyptic number.
121103212230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 121103212230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221998952448).
121103212230 is an abundant number, since it is smaller than the sum of its proper divisors (322894692666).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121103212230 is a wasteful number, since it uses less digits than its factorization.
121103212230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 901 (or 898 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 121103212230 its reverse (32212301121), we get a palindrome (153315513351).
It can be divided in two parts, 121103 and 212230, that added together give a palindrome (333333).
The spelling of 121103212230 in words is "one hundred twenty-one billion, one hundred three million, two hundred twelve thousand, two hundred thirty".
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