Base | Representation |
---|---|
bin | 10111000000111110011100… |
… | …100101000000100100101001 |
3 | 111021101201222122222122121202 |
4 | 113000332130211000210221 |
5 | 101231410401012242301 |
6 | 555140444525413545 |
7 | 30215025345064313 |
oct | 2700763445004451 |
9 | 437351878878552 |
10 | 101222121212201 |
11 | 2a286073629420 |
12 | b42963770a2b5 |
13 | 4463288712512 |
14 | 1add2692307b3 |
15 | ba804657d66b |
hex | 5c0f9c940929 |
101222121212201 has 4 divisors (see below), whose sum is σ = 110424132231504. Its totient is φ = 92020110192900.
The previous prime is 101222121212189. The next prime is 101222121212209. The reversal of 101222121212201 is 102212121222101.
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 a de Polignac number, because none of the positive numbers 2k-101222121212201 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (101222121212209) 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, 4601005509635 + ... + 4601005509656.
It is an arithmetic number, because the mean of its divisors is an integer number (27606033057876).
Almost surely, 2101222121212201 is an apocalyptic number.
101222121212201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
101222121212201 is a deficient number, since it is larger than the sum of its proper divisors (9202011019303).
101222121212201 is an equidigital number, since it uses as much as digits as its factorization.
101222121212201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9202011019302.
The product of its (nonzero) digits is 128, while the sum is 20.
Adding to 101222121212201 its reverse (102212121222101), we get a palindrome (203434242434302).
The spelling of 101222121212201 in words is "one hundred one trillion, two hundred twenty-two billion, one hundred twenty-one million, two hundred twelve thousand, two hundred one".
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