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12011212120002 = 2311131179846257
BaseRepresentation
bin1010111011001001010000…
…0010000001111111000010
31120112021001000122210222020
42232302110002001333002
53033242430300320002
641313512532422310
72346532014322014
oct256622402017702
946467030583866
1012011212120002
113910a21123587
12141ba2a777996
13691863556014
142d74bab081b4
1515c68c4102bc
hexaec94081fc2

12011212120002 has 16 divisors (see below), whose sum is σ = 24024582528672. Its totient is φ = 4003377658560.

The previous prime is 12011212120001. The next prime is 12011212120003. The reversal of 12011212120002 is 20002121211021.

It is an interprime number because it is at equal distance from previous prime (12011212120001) and next prime (12011212120003).

It is not an unprimeable number, because it can be changed into a prime (12011212120001) 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 7 ways as a sum of consecutive naturals, for example, 89856343 + ... + 89989914.

It is an arithmetic number, because the mean of its divisors is an integer number (1501536408042).

Almost surely, 212011212120002 is an apocalyptic number.

12011212120002 is an abundant number, since it is smaller than the sum of its proper divisors (12013370408670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12011212120002 is a wasteful number, since it uses less digits than its factorization.

12011212120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179857393.

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

Adding to 12011212120002 its reverse (20002121211021), we get a palindrome (32013333331023).

The spelling of 12011212120002 in words is "twelve trillion, eleven billion, two hundred twelve million, one hundred twenty thousand, two".

Divisors: 1 2 3 6 11131 22262 33393 66786 179846257 359692514 539538771 1079077542 2001868686667 4003737373334 6005606060001 12011212120002