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12212112813449 is a prime number
BaseRepresentation
bin1011000110110101101010…
…1001010110110110001001
31121020110121010202110121012
42301231122221112312021
53100040401340012244
641550100035453305
72400203353123313
oct261553251266611
947213533673535
1012212112813449
11398914535002a
121452957a57235
136a779c3523a3
143030d86867b3
151629e999b89e
hexb1b5aa56d89

12212112813449 has 2 divisors, whose sum is σ = 12212112813450. Its totient is φ = 12212112813448.

The previous prime is 12212112813431. The next prime is 12212112813463. The reversal of 12212112813449 is 94431821121221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9741265210000 + 2470847603449 = 3121100^2 + 1571893^2 .

It is a cyclic number.

It is not a de Polignac number, because 12212112813449 - 28 = 12212112813193 is a prime.

It is not a weakly prime, because it can be changed into another prime (12212112813409) 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 as a sum of consecutive naturals, namely, 6106056406724 + 6106056406725.

It is an arithmetic number, because the mean of its divisors is an integer number (6106056406725).

Almost surely, 212212112813449 is an apocalyptic number.

It is an amenable number.

12212112813449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212112813449 is an equidigital number, since it uses as much as digits as its factorization.

12212112813449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 41.

The spelling of 12212112813449 in words is "twelve trillion, two hundred twelve billion, one hundred twelve million, eight hundred thirteen thousand, four hundred forty-nine".