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12100101 = 313449691
BaseRepresentation
bin101110001010…
…001000000101
3211202202012220
4232022020011
511044200401
61111202553
7204564156
oct56121005
924682186
1012100101
116914a92
124076459
132678730
14186d92d
1510e0336
hexb8a205

12100101 has 16 divisors (see below), whose sum is σ = 17438400. Its totient is φ = 7418880.

The previous prime is 12100097. The next prime is 12100111. The reversal of 12100101 is 10100121.

It is not a de Polignac number, because 12100101 - 22 = 12100097 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12100101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100111) 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, 17166 + ... + 17856.

It is an arithmetic number, because the mean of its divisors is an integer number (1089900).

Almost surely, 212100101 is an apocalyptic number.

It is an amenable number.

12100101 is a deficient number, since it is larger than the sum of its proper divisors (5338299).

12100101 is a wasteful number, since it uses less digits than its factorization.

12100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156.

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 12100101 is about 3478.5199438842. The cubic root of 12100101 is about 229.5776812329.

Adding to 12100101 its reverse (10100121), we get a palindrome (22200222).

Multiplying 12100101 by its reverse (10100121), we get a palindrome (122212484212221).

The spelling of 12100101 in words is "twelve million, one hundred thousand, one hundred one".

Divisors: 1 3 13 39 449 691 1347 2073 5837 8983 17511 26949 310259 930777 4033367 12100101