Base | Representation |
---|---|
bin | 10001110010000110001… |
… | …000100011001001000101 |
3 | 11022211020202021220100111 |
4 | 101302012020203021011 |
5 | 130010144400200401 |
6 | 2333215545113021 |
7 | 154200551652034 |
oct | 21620610431105 |
9 | 4284222256314 |
10 | 1222021100101 |
11 | 43129006457a |
12 | 178a04488771 |
13 | 8b30b916a59 |
14 | 43208ddc71b |
15 | 21bc30d5e51 |
hex | 11c86223245 |
1222021100101 has 4 divisors (see below), whose sum is σ = 1222084035712. Its totient is φ = 1221958164492.
The previous prime is 1222021100089. The next prime is 1222021100123. The reversal of 1222021100101 is 1010011202221.
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 1222021100101 - 29 = 1222021099589 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 (1222021100141) 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, 31438671 + ... + 31477516.
It is an arithmetic number, because the mean of its divisors is an integer number (305521008928).
Almost surely, 21222021100101 is an apocalyptic number.
It is an amenable number.
1222021100101 is a deficient number, since it is larger than the sum of its proper divisors (62935611).
1222021100101 is an equidigital number, since it uses as much as digits as its factorization.
1222021100101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 62935610.
The product of its (nonzero) digits is 16, while the sum is 13.
Adding to 1222021100101 its reverse (1010011202221), we get a palindrome (2232032302322).
The spelling of 1222021100101 in words is "one trillion, two hundred twenty-two billion, twenty-one million, one hundred thousand, one hundred one".
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