Base | Representation |
---|---|
bin | 111000110111001010… |
… | …1011111010010011111 |
3 | 102200012001220110002222 |
4 | 1301232111133102133 |
5 | 4000040203224411 |
6 | 132032513335555 |
7 | 11552001445511 |
oct | 1615625372237 |
9 | 380161813088 |
10 | 122110211231 |
11 | 47872038048 |
12 | 1b7ba5675bb |
13 | b69043bc78 |
14 | 5ca56cdbb1 |
15 | 329a3884db |
hex | 1c6e55f49f |
122110211231 has 16 divisors (see below), whose sum is σ = 127872108000. Its totient is φ = 116460489600.
The previous prime is 122110211221. The next prime is 122110211233. The reversal of 122110211231 is 132112011221.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 122110211231 - 222 = 122106016927 is a prime.
It is a super-2 number, since 2×1221102112312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (122110211233) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 704036 + ... + 860166.
It is an arithmetic number, because the mean of its divisors is an integer number (7992006750).
Almost surely, 2122110211231 is an apocalyptic number.
122110211231 is a deficient number, since it is larger than the sum of its proper divisors (5761896769).
122110211231 is a wasteful number, since it uses less digits than its factorization.
122110211231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 156490.
The product of its (nonzero) digits is 48, while the sum is 17.
Adding to 122110211231 its reverse (132112011221), we get a palindrome (254222222452).
The spelling of 122110211231 in words is "one hundred twenty-two billion, one hundred ten million, two hundred eleven thousand, two hundred thirty-one".
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