Base | Representation |
---|---|
bin | 100100011010110… |
… | …0110010101011001 |
3 | 10011011102112212002 |
4 | 1020311212111121 |
5 | 10000313311301 |
6 | 321131530345 |
7 | 42165625646 |
oct | 11065462531 |
9 | 3134375762 |
10 | 1222010201 |
11 | 57787a395 |
12 | 2a12b99b5 |
13 | 16622c879 |
14 | b841cdcd |
15 | 7243716b |
hex | 48d66559 |
1222010201 has 12 divisors (see below), whose sum is σ = 1299475740. Its totient is φ = 1148928000.
The previous prime is 1222010197. The next prime is 1222010203. The reversal of 1222010201 is 1020102221.
It is a happy number.
It can be written as a sum of positive squares in 6 ways, for example, as 577600 + 1221432601 = 760^2 + 34949^2 .
It is not a de Polignac number, because 1222010201 - 22 = 1222010197 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1222010203) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 405701 + ... + 408701.
It is an arithmetic number, because the mean of its divisors is an integer number (108289645).
Almost surely, 21222010201 is an apocalyptic number.
It is an amenable number.
1222010201 is a deficient number, since it is larger than the sum of its proper divisors (77465539).
1222010201 is a wasteful number, since it uses less digits than its factorization.
1222010201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4444 (or 4427 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 11.
The square root of 1222010201 is about 34957.2624929356. The cubic root of 1222010201 is about 1069.1162823007.
Adding to 1222010201 its reverse (1020102221), we get a palindrome (2242112422).
The spelling of 1222010201 in words is "one billion, two hundred twenty-two million, ten thousand, two hundred one".
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