| Base | Representation |
|---|---|
| bin | 11101010001111011001… |
| … | …010110010101001111100 |
| 3 | 21010100121111001112200212 |
| 4 | 131101323022302221330 |
| 5 | 230431300421333040 |
| 6 | 4140203500211552 |
| 7 | 265240663222550 |
| oct | 35217312625174 |
| 9 | 7110544045625 |
| 10 | 2012111121020 |
| 11 | 7063712aa310 |
| 12 | 285b63b39bb8 |
| 13 | 117983734580 |
| 14 | 6d55b155860 |
| 15 | 3751639cd65 |
| hex | 1d47b2b2a7c |
2012111121020 has 192 divisors, whose sum is σ = 5674441070592. Its totient is φ = 578793600000.
The previous prime is 2012111121011. The next prime is 2012111121049. The reversal of 2012111121020 is 201211112102.
It is a super-2 number, since 2×20121111210202 (a number of 25 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (14).
It is a junction number, because it is equal to n+sod(n) for n = 2012111120986 and 2012111121004.
It is a congruent number.
It is an unprimeable number.
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 63 ways as a sum of consecutive naturals, for example, 198212945 + ... + 198223095.
It is an arithmetic number, because the mean of its divisors is an integer number (29554380576).
Almost surely, 22012111121020 is an apocalyptic number.
2012111121020 is a gapful number since it is divisible by the number (20) 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 2012111121020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2837220535296).
2012111121020 is an abundant number, since it is smaller than the sum of its proper divisors (3662329949572).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2012111121020 is a wasteful number, since it uses less digits than its factorization.
2012111121020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20092 (or 20090 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 14.
Adding to 2012111121020 its reverse (201211112102), we get a palindrome (2213322233122).
It can be divided in two parts, 201211 and 1121020, that added together give a palindrome (1322231).
The spelling of 2012111121020 in words is "two trillion, twelve billion, one hundred eleven million, one hundred twenty-one thousand, twenty".
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