Base | Representation |
---|---|
bin | 11110110111100001010… |
… | …111111010111011100011 |
3 | 21111210012002001212002212 |
4 | 132313201113322323203 |
5 | 234223204201134334 |
6 | 4302244342032335 |
7 | 306152212454426 |
oct | 36674127727343 |
9 | 7453162055085 |
10 | 2121200021219 |
11 | 748661126684 |
12 | 2a31297186ab |
13 | 12504a24c766 |
14 | 7494932d9bd |
15 | 3a29d4c4ece |
hex | 1ede15faee3 |
2121200021219 has 2 divisors, whose sum is σ = 2121200021220. Its totient is φ = 2121200021218.
The previous prime is 2121200021147. The next prime is 2121200021231. The reversal of 2121200021219 is 9121200021212.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 2121200021219 - 216 = 2121199955683 is a prime.
It is a super-2 number, since 2×21212000212192 (a number of 25 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2121200021194 and 2121200021203.
It is not a weakly prime, because it can be changed into another prime (2121200021419) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060600010609 + 1060600010610.
It is an arithmetic number, because the mean of its divisors is an integer number (1060600010610).
Almost surely, 22121200021219 is an apocalyptic number.
2121200021219 is a deficient number, since it is larger than the sum of its proper divisors (1).
2121200021219 is an equidigital number, since it uses as much as digits as its factorization.
2121200021219 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 288, while the sum is 23.
The spelling of 2121200021219 in words is "two trillion, one hundred twenty-one billion, two hundred million, twenty-one thousand, two hundred nineteen".
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