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12012002212101 = 311173358363979
BaseRepresentation
bin1010111011001100001100…
…0111111111100100000101
31120112100002002100122120120
42232303003013333210011
53033301040031241401
641314123155052153
72346560420101353
oct256630307774405
946470062318516
1012012002212101
113911297107461
12142000b2a1059
1369195b14a238
142d7553a147d3
1515c6d697b836
hexaecc31ff905

12012002212101 has 8 divisors (see below), whose sum is σ = 16017436450080. Its totient is φ = 8007284724432.

The previous prime is 12012002212033. The next prime is 12012002212159. The reversal of 12012002212101 is 10121220021021.

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

It is a de Polignac number, because none of the positive numbers 2k-12012002212101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012002212901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179148471 + ... + 179215508.

It is an arithmetic number, because the mean of its divisors is an integer number (2002179556260).

Almost surely, 212012002212101 is an apocalyptic number.

It is an amenable number.

12012002212101 is a deficient number, since it is larger than the sum of its proper divisors (4005434237979).

12012002212101 is a wasteful number, since it uses less digits than its factorization.

12012002212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358375155.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12012002212101 its reverse (10121220021021), we get a palindrome (22133222233122).

The spelling of 12012002212101 in words is "twelve trillion, twelve billion, two million, two hundred twelve thousand, one hundred one".

Divisors: 1 3 11173 33519 358363979 1075091937 4004000737367 12012002212101