Base | Representation |
---|---|
bin | 11011101111011110110111… |
… | …110101000100101110101001 |
3 | 121000000001201000120211021120 |
4 | 123233132313311010232221 |
5 | 111443003412322333001 |
6 | 1111254415450325453 |
7 | 34461642665243322 |
oct | 3357366765045651 |
9 | 530001630524246 |
10 | 122010220121001 |
11 | 35970275505193 |
12 | 11826493a29889 |
13 | 531068c15c004 |
14 | 221b47cdc1449 |
15 | e18b749c2236 |
hex | 6ef7b7d44ba9 |
122010220121001 has 4 divisors (see below), whose sum is σ = 162680293494672. Its totient is φ = 81340146747332.
The previous prime is 122010220120967. The next prime is 122010220121047. The reversal of 122010220121001 is 100121022010221.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 122010220121001 - 239 = 121460464307113 is a prime.
It is not an unprimeable number, because it can be changed into a prime (122010220122001) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20335036686831 + ... + 20335036686836.
It is an arithmetic number, because the mean of its divisors is an integer number (40670073373668).
Almost surely, 2122010220121001 is an apocalyptic number.
It is an amenable number.
122010220121001 is a deficient number, since it is larger than the sum of its proper divisors (40670073373671).
122010220121001 is an equidigital number, since it uses as much as digits as its factorization.
122010220121001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 40670073373670.
The product of its (nonzero) digits is 32, while the sum is 15.
Adding to 122010220121001 its reverse (100121022010221), we get a palindrome (222131242131222).
It can be divided in two parts, 122010220 and 121001, that added together give a palindrome (122131221).
The spelling of 122010220121001 in words is "one hundred twenty-two trillion, ten billion, two hundred twenty million, one hundred twenty-one thousand, one".
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