Search a number
-
+
12122101101 = 311409898133
BaseRepresentation
bin10110100101000100…
…01001010101101101
31011021210212112120110
423102202021111231
5144311224213401
65322510410233
7606253105425
oct132242112555
934253775513
1012122101101
115160678a80
122423800979
1311b2545bb6
1482dd23485
154ae33d9d6
hex2d288956d

12122101101 has 16 divisors (see below), whose sum is σ = 17675277120. Its totient is φ = 7328757120.

The previous prime is 12122101063. The next prime is 12122101139. The reversal of 12122101101 is 10110122121.

It is an interprime number because it is at equal distance from previous prime (12122101063) and next prime (12122101139).

It is not a de Polignac number, because 12122101101 - 26 = 12122101037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122101601) 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, 435570 + ... + 462563.

It is an arithmetic number, because the mean of its divisors is an integer number (1104704820).

Almost surely, 212122101101 is an apocalyptic number.

12122101101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12122101101 is a deficient number, since it is larger than the sum of its proper divisors (5553176019).

12122101101 is a wasteful number, since it uses less digits than its factorization.

12122101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898556.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12122101101 its reverse (10110122121), we get a palindrome (22232223222).

The spelling of 12122101101 in words is "twelve billion, one hundred twenty-two million, one hundred one thousand, one hundred one".

Divisors: 1 3 11 33 409 1227 4499 13497 898133 2694399 9879463 29638389 367336397 1102009191 4040700367 12122101101