Search a number
-
+
12122102012230 = 257473684529487
BaseRepresentation
bin1011000001100110010110…
…0101011001100101000110
31120220212021010112222222201
42300121211211121211012
53042102031103342410
641440452231545114
72360535663002320
oct260314545314506
946825233488881
1012122102012230
113953a55621911
12143941752b19a
1369c15621a972
142dc9da176610
151604cc6d983a
hexb0665959946

12122102012230 has 32 divisors (see below), whose sum is σ = 25467467821056. Its totient is φ = 4067720552544.

The previous prime is 12122102012191. The next prime is 12122102012231. The reversal of 12122102012230 is 3221020122121.

It is a junction number, because it is equal to n+sod(n) for n = 12122102012198 and 12122102012207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122102012231) 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, 1842261454 + ... + 1842268033.

It is an arithmetic number, because the mean of its divisors is an integer number (795858369408).

Almost surely, 212122102012230 is an apocalyptic number.

12122102012230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122102012230 is an abundant number, since it is smaller than the sum of its proper divisors (13345365808826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12122102012230 is a wasteful number, since it uses less digits than its factorization.

12122102012230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684529548.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12122102012230 its reverse (3221020122121), we get a palindrome (15343122134351).

The spelling of 12122102012230 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, twelve thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 47 70 94 235 329 470 658 1645 3290 3684529487 7369058974 18422647435 25791706409 36845294870 51583412818 128958532045 173172885889 257917064090 346345771778 865864429445 1212210201223 1731728858890 2424420402446 6061051006115 12122102012230