Base | Representation |
---|---|
bin | 10001101000111101010… |
… | …110100110001000101100 |
3 | 11021212221000012000110112 |
4 | 101220331112212020230 |
5 | 124330101242023040 |
6 | 2324514233355152 |
7 | 153402460635236 |
oct | 21507526461054 |
9 | 4255830160415 |
10 | 1212210111020 |
11 | 428106007237 |
12 | 176b26868ab8 |
13 | 8a407136a7c |
14 | 42957ddb256 |
15 | 217ebb11365 |
hex | 11a3d5a622c |
1212210111020 has 24 divisors (see below), whose sum is σ = 2555546462784. Its totient is φ = 482997334016.
The previous prime is 1212210111019. The next prime is 1212210111067. The reversal of 1212210111020 is 201110122121.
It is a junction number, because it is equal to n+sod(n) for n = 1212210110986 and 1212210111004.
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 7 ways as a sum of consecutive naturals, for example, 117914132 + ... + 117924411.
It is an arithmetic number, because the mean of its divisors is an integer number (106481102616).
Almost surely, 21212210111020 is an apocalyptic number.
1212210111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1212210111020 is an abundant number, since it is smaller than the sum of its proper divisors (1343336351764).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1212210111020 is a wasteful number, since it uses less digits than its factorization.
1212210111020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 235838809 (or 235838807 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 14.
Adding to 1212210111020 its reverse (201110122121), we get a palindrome (1413320233141).
It can be divided in two parts, 12122101 and 11020, that added together give a palindrome (12133121).
The spelling of 1212210111020 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred eleven thousand, twenty".
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