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210212221142191 is a prime number
BaseRepresentation
bin101111110010111111011000…
…110001001100010010101111
31000120022002111010101100022011
4233302333120301030102233
5210023104112103022231
62023030054454102051
762164221542634232
oct5762773061142257
91016262433340264
10210212221142191
1160a86558682584
121b6b065364a927
13903ac09648648
1439ca47bd79419
15194818030a9b1
hexbf2fd8c4c4af

210212221142191 has 2 divisors, whose sum is σ = 210212221142192. Its totient is φ = 210212221142190.

The previous prime is 210212221142129. The next prime is 210212221142227. The reversal of 210212221142191 is 191241122212012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210212221142191 - 217 = 210212221011119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210212221143191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105106110571095 + 105106110571096.

It is an arithmetic number, because the mean of its divisors is an integer number (105106110571096).

Almost surely, 2210212221142191 is an apocalyptic number.

210212221142191 is a deficient number, since it is larger than the sum of its proper divisors (1).

210212221142191 is an equidigital number, since it uses as much as digits as its factorization.

210212221142191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 210212221142191 in words is "two hundred ten trillion, two hundred twelve billion, two hundred twenty-one million, one hundred forty-two thousand, one hundred ninety-one".