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17990122332211 is a prime number
BaseRepresentation
bin1000001011100101001101…
…10110011110000000110011
32100200211122120001010210221
410011302212312132000303
54324222232304112321
6102132314220233511
73534513000515341
oct405624666360063
970624576033727
1017990122332211
115806628067247
12202673369b897
13a065cc4c4833
14462a259b0991
15212e6eb11e41
hex105ca6d9e033

17990122332211 has 2 divisors, whose sum is σ = 17990122332212. Its totient is φ = 17990122332210.

The previous prime is 17990122332163. The next prime is 17990122332233. The reversal of 17990122332211 is 11223322109971.

It is a strong prime.

It is an emirp because it is prime and its reverse (11223322109971) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17990122332211 - 213 = 17990122324019 is a prime.

It is not a weakly prime, because it can be changed into another prime (17990122332271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8995061166105 + 8995061166106.

It is an arithmetic number, because the mean of its divisors is an integer number (8995061166106).

Almost surely, 217990122332211 is an apocalyptic number.

17990122332211 is a deficient number, since it is larger than the sum of its proper divisors (1).

17990122332211 is an equidigital number, since it uses as much as digits as its factorization.

17990122332211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 17990122332211 in words is "seventeen trillion, nine hundred ninety billion, one hundred twenty-two million, three hundred thirty-two thousand, two hundred eleven".