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12100102202101 = 12634195773361
BaseRepresentation
bin1011000000010100011001…
…0010110010001011110101
31120211202110221000211222011
42300011012102302023311
53041222002130431401
641422413223404221
72356126545464224
oct260050622621365
946752427024864
1012100102202101
113945696275951
1214350b78b3671
1369a05b434234
142db910444cbb
1515eb410e7451
hexb01464b22f5

12100102202101 has 4 divisors (see below), whose sum is σ = 12100198101804. Its totient is φ = 12100006302400.

The previous prime is 12100102202029. The next prime is 12100102202119. The reversal of 12100102202101 is 10120220100121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3041501120100 + 9058601082001 = 1743990^2 + 3009751^2 .

It is a cyclic number.

It is not a de Polignac number, because 12100102202101 - 221 = 12100100104949 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 (12100102202131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47760340 + ... + 48013021.

It is an arithmetic number, because the mean of its divisors is an integer number (3025049525451).

Almost surely, 212100102202101 is an apocalyptic number.

It is an amenable number.

12100102202101 is a deficient number, since it is larger than the sum of its proper divisors (95899703).

12100102202101 is an equidigital number, since it uses as much as digits as its factorization.

12100102202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95899702.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12100102202101 its reverse (10120220100121), we get a palindrome (22220322302222).

The spelling of 12100102202101 in words is "twelve trillion, one hundred billion, one hundred two million, two hundred two thousand, one hundred one".

Divisors: 1 126341 95773361 12100102202101