| Base | Representation |
|---|---|
| bin | 10001101000110111011… |
| … | …001100000011111000100 |
| 3 | 11021212200001012120102020 |
| 4 | 101220313121200133010 |
| 5 | 124324400203223022 |
| 6 | 2324500304243140 |
| 7 | 153400135540461 |
| oct | 21506731403704 |
| 9 | 4255601176366 |
| 10 | 1212110211012 |
| 11 | 428064683948 |
| 12 | 176ab93104b0 |
| 13 | 8a3bc52993c |
| 14 | 42948a34668 |
| 15 | 217e2e7b35c |
| hex | 11a376607c4 |
1212110211012 has 96 divisors (see below), whose sum is σ = 2963822400000. Its totient is φ = 385035915264.
The previous prime is 1212110210989. The next prime is 1212110211019. The reversal of 1212110211012 is 2101120112121.
It is a happy number.
It is a super-2 number, since 2×12121102110122 (a number of 25 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1212110210982 and 1212110211000.
It is not an unprimeable number, because it can be changed into a prime (1212110211019) by changing a digit.
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 31 ways as a sum of consecutive naturals, for example, 111309664 + ... + 111320552.
It is an arithmetic number, because the mean of its divisors is an integer number (30873150000).
Almost surely, 21212110211012 is an apocalyptic number.
1212110211012 is a gapful number since it is divisible by the number (12) 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 1212110211012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1481911200000).
1212110211012 is an abundant number, since it is smaller than the sum of its proper divisors (1751712188988).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1212110211012 is a wasteful number, since it uses less digits than its factorization.
1212110211012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15053 (or 15051 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 15.
Adding to 1212110211012 its reverse (2101120112121), we get a palindrome (3313230323133).
The spelling of 1212110211012 in words is "one trillion, two hundred twelve billion, one hundred ten million, two hundred eleven thousand, twelve".
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