Base | Representation |
---|---|
bin | 100000001100010010101… |
… | …110000001100000001111 |
3 | 21211111010120101020112010 |
4 | 200030102232001200033 |
5 | 242221112341241421 |
6 | 4412140355312303 |
7 | 315553633354362 |
oct | 40142256014017 |
9 | 7744116336463 |
10 | 2212222212111 |
11 | 78321a84792a |
12 | 2b88b08ab693 |
13 | 1307c4a7b602 |
14 | 79101cb40d9 |
15 | 3c829468076 |
hex | 20312b8180f |
2212222212111 has 8 divisors (see below), whose sum is σ = 2956083949744. Its totient is φ = 1471587641280.
The previous prime is 2212222212089. The next prime is 2212222212121. The reversal of 2212222212111 is 1112122222122.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2212222212111 - 29 = 2212222211599 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2212222212121) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 806790100 + ... + 806792841.
It is an arithmetic number, because the mean of its divisors is an integer number (369510493718).
Almost surely, 22212222212111 is an apocalyptic number.
2212222212111 is a deficient number, since it is larger than the sum of its proper divisors (743861737633).
2212222212111 is a wasteful number, since it uses less digits than its factorization.
2212222212111 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1613583401.
The product of its digits is 256, while the sum is 21.
Adding to 2212222212111 its reverse (1112122222122), we get a palindrome (3324344434233).
The spelling of 2212222212111 in words is "two trillion, two hundred twelve billion, two hundred twenty-two million, two hundred twelve thousand, one hundred eleven".
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