Base | Representation |
---|---|
bin | 100000001011010111000… |
… | …010101111111010010000 |
3 | 21211101112210110000022200 |
4 | 200023113002233322100 |
5 | 242212040034341422 |
6 | 4411453152203200 |
7 | 315520055325060 |
oct | 40132702577220 |
9 | 7741483400280 |
10 | 2211221012112 |
11 | 782856684512 |
12 | 2b8671539500 |
13 | 130695511188 |
14 | 79048d333a0 |
15 | 3c7bb5eb2ac |
hex | 202d70afe90 |
2211221012112 has 60 divisors (see below), whose sum is σ = 7072397367360. Its totient is φ = 631777431744.
The previous prime is 2211221012089. The next prime is 2211221012123. The reversal of 2211221012112 is 2112101221122.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1096834812 + ... + 1096836827.
It is an arithmetic number, because the mean of its divisors is an integer number (117873289456).
Almost surely, 22211221012112 is an apocalyptic number.
It is an amenable number.
2211221012112 is an abundant number, since it is smaller than the sum of its proper divisors (4861176355248).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2211221012112 is a wasteful number, since it uses less digits than its factorization.
2211221012112 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2193671660 (or 2193671651 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 18.
Adding to 2211221012112 its reverse (2112101221122), we get a palindrome (4323322233234).
The spelling of 2211221012112 in words is "two trillion, two hundred eleven billion, two hundred twenty-one million, twelve thousand, one hundred twelve".
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