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12100010120101 = 61348495692009
BaseRepresentation
bin1011000000010100000011…
…0011100001001110100101
31120211202020111202121012201
42300011000303201032211
53041221310042320401
641422400134014501
72356124350010461
oct260050063411645
946752214677181
1012100010120101
1139456492a2322
121435090aa7431
1369a045333747
142db9021154a1
1515eb37ea8b01
hexb0140ce13a5

12100010120101 has 8 divisors (see below), whose sum is σ = 12298726007000. Its totient is φ = 11901305687040.

The previous prime is 12100010120087. The next prime is 12100010120171. The reversal of 12100010120101 is 10102101000121.

It can be written as a sum of positive squares in 4 ways, for example, as 3666271392001 + 8433738728100 = 1914751^2 + 2904090^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12100010120101 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 (12100010120171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720216 + ... + 4971793.

It is an arithmetic number, because the mean of its divisors is an integer number (1537340750875).

Almost surely, 212100010120101 is an apocalyptic number.

It is an amenable number.

12100010120101 is a deficient number, since it is larger than the sum of its proper divisors (198715886899).

12100010120101 is an equidigital number, since it uses as much as digits as its factorization.

12100010120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5726919.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12100010120101 its reverse (10102101000121), we get a palindrome (22202111120222).

The spelling of 12100010120101 in words is "twelve trillion, one hundred billion, ten million, one hundred twenty thousand, one hundred one".

Divisors: 1 61 34849 2125789 5692009 347212549 198360821641 12100010120101