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12212312123001 = 3171671433874853
BaseRepresentation
bin1011000110110110011010…
…0001101010011001111001
31121020111010000210102220110
42301231212201222121321
53100041303400414001
641550131515414533
72400211323203604
oct261554641523171
947214100712813
1012212312123001
113989237901271
1214529b2754449
136a7801727333
14303116d2933b
15162a0c21b3d6
hexb1b6686a679

12212312123001 has 16 divisors (see below), whose sum is σ = 17344150233984. Its totient is φ = 7616743213824.

The previous prime is 12212312122991. The next prime is 12212312123059. The reversal of 12212312123001 is 10032121321221.

It is not a de Polignac number, because 12212312123001 - 221 = 12212310025849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12212312125001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 716928910 + ... + 716945943.

It is an arithmetic number, because the mean of its divisors is an integer number (1084009389624).

Almost surely, 212212312123001 is an apocalyptic number.

It is an amenable number.

12212312123001 is a deficient number, since it is larger than the sum of its proper divisors (5131838110983).

12212312123001 is a wasteful number, since it uses less digits than its factorization.

12212312123001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433875040.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12212312123001 its reverse (10032121321221), we get a palindrome (22244433444222).

The spelling of 12212312123001 in words is "twelve trillion, two hundred twelve billion, three hundred twelve million, one hundred twenty-three thousand, one".

Divisors: 1 3 17 51 167 501 2839 8517 1433874853 4301624559 24375872501 73127617503 239457100451 718371301353 4070770707667 12212312123001