Search a number
-
+
212112112201 = 11196116637549
BaseRepresentation
bin1100010110001011011…
…1011111101001001001
3202021111110100201212121
43011202313133221021
511433401200042301
6241235402411241
721216223130323
oct3054267375111
9667443321777
10212112112201
1181a57837390
1235137b00b21
1317004778582
14a3a2964613
1557b698d3a1
hex3162ddfa49

212112112201 has 16 divisors (see below), whose sum is σ = 247566744000. Its totient is φ = 179685518400.

The previous prime is 212112112187. The next prime is 212112112213. The reversal of 212112112201 is 102211211212.

It is a cyclic number.

It is not a de Polignac number, because 212112112201 - 219 = 212111587913 is a prime.

It is a super-2 number, since 2×2121121122012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212112112801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8306026 + ... + 8331523.

It is an arithmetic number, because the mean of its divisors is an integer number (15472921500).

Almost surely, 2212112112201 is an apocalyptic number.

It is an amenable number.

212112112201 is a deficient number, since it is larger than the sum of its proper divisors (35454631799).

212112112201 is a wasteful number, since it uses less digits than its factorization.

212112112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16637640.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212112112201 its reverse (102211211212), we get a palindrome (314323323413).

The spelling of 212112112201 in words is "two hundred twelve billion, one hundred twelve million, one hundred twelve thousand, two hundred one".

Divisors: 1 11 19 61 209 671 1159 12749 16637549 183013039 316113431 1014890489 3477247741 11163795379 19282919291 212112112201