Base | Representation |
---|---|
bin | 10110011001000001… |
… | …00001011010001111 |
3 | 1011000202122200112210 |
4 | 23030200201122033 |
5 | 144104334341421 |
6 | 5304500001503 |
7 | 603614626353 |
oct | 131440413217 |
9 | 34022580483 |
10 | 12021012111 |
11 | 5109603359 |
12 | 23b5990293 |
13 | 1197610824 |
14 | 82072b463 |
15 | 4a5521576 |
hex | 2cc82168f |
12021012111 has 16 divisors (see below), whose sum is σ = 16583580000. Its totient is φ = 7736322048.
The previous prime is 12021012109. The next prime is 12021012149. The reversal of 12021012111 is 11121012021.
It is not a de Polignac number, because 12021012111 - 21 = 12021012109 is a prime.
It is a super-3 number, since 3×120210121113 (a number of 31 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12021012151) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 836515 + ... + 850763.
It is an arithmetic number, because the mean of its divisors is an integer number (1036473750).
Almost surely, 212021012111 is an apocalyptic number.
12021012111 is a deficient number, since it is larger than the sum of its proper divisors (4562567889).
12021012111 is a wasteful number, since it uses less digits than its factorization.
12021012111 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23978.
The product of its (nonzero) digits is 8, while the sum is 12.
Adding to 12021012111 its reverse (11121012021), we get a palindrome (23142024132).
The spelling of 12021012111 in words is "twelve billion, twenty-one million, twelve thousand, one hundred eleven".
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