Base | Representation |
---|---|
bin | 11011101111011110110001… |
… | …010001000010001101101101 |
3 | 121000000001102100101121200112 |
4 | 123233132301101002031231 |
5 | 111443003201130311341 |
6 | 1111254400514305405 |
7 | 34461640160310536 |
oct | 3357366121021555 |
9 | 530001370347615 |
10 | 122010110010221 |
11 | 35970219338344 |
12 | 11826462b88265 |
13 | 53106723b83c4 |
14 | 221b46c51b68d |
15 | e18b69ec1aeb |
hex | 6ef7b144236d |
122010110010221 has 4 divisors (see below), whose sum is σ = 123831156428352. Its totient is φ = 120189063592092.
The previous prime is 122010110010209. The next prime is 122010110010247. The reversal of 122010110010221 is 122010011010221.
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 122010110010221 - 26 = 122010110010157 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 122010110010196 and 122010110010205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (122010110010521) 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, 910523208965 + ... + 910523209098.
It is an arithmetic number, because the mean of its divisors is an integer number (30957789107088).
Almost surely, 2122010110010221 is an apocalyptic number.
It is an amenable number.
122010110010221 is a deficient number, since it is larger than the sum of its proper divisors (1821046418131).
122010110010221 is an equidigital number, since it uses as much as digits as its factorization.
122010110010221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1821046418130.
The product of its (nonzero) digits is 16, while the sum is 14.
Adding to 122010110010221 its reverse (122010011010221), we get a palindrome (244020121020442).
The spelling of 122010110010221 in words is "one hundred twenty-two trillion, ten billion, one hundred ten million, ten thousand, two hundred twenty-one".
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