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12122122122101 = 19151197105120407
BaseRepresentation
bin1011000001100110011011…
…0010000111001101110101
31120220212022112101200112202
42300121212302013031311
53042102101230401401
641440454230554245
72360536325636555
oct260314662071565
946825275350482
1012122122122101
113953a65a07742
121439422208985
1369c15a43c0b4
142dc9dcacd165
151604ce35d06b
hexb0666c87375

12122122122101 has 32 divisors (see below), whose sum is σ = 12922750494720. Its totient is φ = 11338797960000.

The previous prime is 12122122122083. The next prime is 12122122122113. The reversal of 12122122122101 is 10122122122121.

12122122122101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12122122122101 - 218 = 12122121859957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122122122191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 594007640 + ... + 594028046.

It is an arithmetic number, because the mean of its divisors is an integer number (403835952960).

Almost surely, 212122122122101 is an apocalyptic number.

It is an amenable number.

12122122122101 is a deficient number, since it is larger than the sum of its proper divisors (800628372619).

12122122122101 is a wasteful number, since it uses less digits than its factorization.

12122122122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21825.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12122122122101 its sum of digits (20), we get a palindrome (12122122122121).

Adding to 12122122122101 its reverse (10122122122121), we get a palindrome (22244244244222).

The spelling of 12122122122101 in words is "twelve trillion, one hundred twenty-two billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred one".

Divisors: 1 19 151 197 1051 2869 3743 19969 20407 29747 158701 207047 387733 565193 3015319 3081457 3933893 4020179 21447757 31264097 58547683 76383401 407507383 594017843 607047029 3238611307 4225208129 11533893551 61533614833 80278954451 638006427479 12122122122101