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12101200122101 = 19796114805519
BaseRepresentation
bin1011000000011000011110…
…1111000001000011110101
31120211212022102221222001212
42300012013233001003311
53041231224212401401
641423114203531205
72356166006605166
oct260060757010365
946755272858055
1012101200122101
1139460a9a9a452
121435363529b05
1369a1a4a3723c
142db9b61a176d
1515eba76bbdbb
hexb0187bc10f5

12101200122101 has 4 divisors (see below), whose sum is σ = 12107314929600. Its totient is φ = 12095085314604.

The previous prime is 12101200122097. The next prime is 12101200122119. The reversal of 12101200122101 is 10122100210121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12101200122101 - 22 = 12101200122097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101200122901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3057400781 + ... + 3057404738.

It is an arithmetic number, because the mean of its divisors is an integer number (3026828732400).

Almost surely, 212101200122101 is an apocalyptic number.

It is an amenable number.

12101200122101 is a deficient number, since it is larger than the sum of its proper divisors (6114807499).

12101200122101 is an equidigital number, since it uses as much as digits as its factorization.

12101200122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6114807498.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12101200122101 its reverse (10122100210121), we get a palindrome (22223300332222).

The spelling of 12101200122101 in words is "twelve trillion, one hundred one billion, two hundred million, one hundred twenty-two thousand, one hundred one".

Divisors: 1 1979 6114805519 12101200122101