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12012011010101 = 443223712121211
BaseRepresentation
bin1010111011001100001110…
…1001100011100000110101
31120112100002200220122011102
42232303003221203200311
53033301044304310401
641314124111415445
72346560554633454
oct256630351434065
946470080818142
1012012011010101
1139112a1076533
121420012224585
1369195cc0a95b
142d7554c64b9b
1515c6d761856b
hexaecc3a63835

12012011010101 has 8 divisors (see below), whose sum is σ = 12044508970464. Its totient is φ = 11979537297520.

The previous prime is 12012011010079. The next prime is 12012011010149. The reversal of 12012011010101 is 10101011021021.

12012011010101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-12012011010101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012011010161) 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, 5069615 + ... + 7051596.

It is an arithmetic number, because the mean of its divisors is an integer number (1505563621308).

Almost surely, 212012011010101 is an apocalyptic number.

It is an amenable number.

12012011010101 is a deficient number, since it is larger than the sum of its proper divisors (32497960363).

12012011010101 is a wasteful number, since it uses less digits than its factorization.

12012011010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12123891.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12012011010101 its reverse (10101011021021), we get a palindrome (22113022031122).

The spelling of 12012011010101 in words is "twelve trillion, twelve billion, eleven million, ten thousand, one hundred one".

Divisors: 1 443 2237 990991 12121211 5369696473 27115149007 12012011010101