Base | Representation |
---|---|
bin | 1011000110110110000001… |
… | …1100100011100100011101 |
3 | 1121020110211220212012110011 |
4 | 2301231200130203210131 |
5 | 3100041101242332424 |
6 | 41550113433243221 |
7 | 2400205644202624 |
oct | 261554034434435 |
9 | 47213756765404 |
10 | 12212210120989 |
11 | 398919527268a |
12 | 1452984563511 |
13 | 6a77b6562508 |
14 | 3031075766bb |
15 | 162a032bd694 |
hex | b1b6072391d |
12212210120989 has 2 divisors, whose sum is σ = 12212210120990. Its totient is φ = 12212210120988.
The previous prime is 12212210120987. The next prime is 12212210121053. The reversal of 12212210120989 is 98902101221221.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 10446147202500 + 1766062918489 = 3232050^2 + 1328933^2 .
It is a cyclic number.
It is not a de Polignac number, because 12212210120989 - 21 = 12212210120987 is a prime.
Together with 12212210120987, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12212210120987) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106105060494 + 6106105060495.
It is an arithmetic number, because the mean of its divisors is an integer number (6106105060495).
Almost surely, 212212210120989 is an apocalyptic number.
It is an amenable number.
12212210120989 is a deficient number, since it is larger than the sum of its proper divisors (1).
12212210120989 is an equidigital number, since it uses as much as digits as its factorization.
12212210120989 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 20736, while the sum is 40.
The spelling of 12212210120989 in words is "twelve trillion, two hundred twelve billion, two hundred ten million, one hundred twenty thousand, nine hundred eighty-nine".
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