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12001201022191 is a prime number
BaseRepresentation
bin1010111010100011111101…
…0100101110010011101111
31120111022012100000100111211
42232220333110232103233
53033111424430202231
641305135312055251
72346025643355643
oct256507724562357
946438170010454
1012001201022191
113907754119627
121419ab5b34527
136909294813c4
142d6c0b2d6c23
1515c2a35adeb1
hexaea3f52e4ef

12001201022191 has 2 divisors, whose sum is σ = 12001201022192. Its totient is φ = 12001201022190.

The previous prime is 12001201022183. The next prime is 12001201022227. The reversal of 12001201022191 is 19122010210021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12001201022191 - 23 = 12001201022183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12001201022141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000600511095 + 6000600511096.

It is an arithmetic number, because the mean of its divisors is an integer number (6000600511096).

Almost surely, 212001201022191 is an apocalyptic number.

12001201022191 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001201022191 is an equidigital number, since it uses as much as digits as its factorization.

12001201022191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 12001201022191 in words is "twelve trillion, one billion, two hundred one million, twenty-two thousand, one hundred ninety-one".