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102120102211 = 127219133149
BaseRepresentation
bin101111100011011010…
…1010001100101000011
3100202120220222200201211
41133012311101211003
53133120221232321
6114525140110551
710243426355341
oct1370665214503
9322526880654
10102120102211
113a344154296
121795b995457
139825b183aa
144d2a860991
1529ca4230e1
hex17c6d51943

102120102211 has 12 divisors (see below), whose sum is σ = 103472553600. Its totient is φ = 100782516240.

The previous prime is 102120102187. The next prime is 102120102283. The reversal of 102120102211 is 112201021201.

It is not a de Polignac number, because 102120102211 - 217 = 102119971139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102120102191 and 102120102200.

It is not an unprimeable number, because it can be changed into a prime (102220102211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3064065 + ... + 3097213.

It is an arithmetic number, because the mean of its divisors is an integer number (8622712800).

Almost surely, 2102120102211 is an apocalyptic number.

102120102211 is a deficient number, since it is larger than the sum of its proper divisors (1352451389).

102120102211 is an equidigital number, since it uses as much as digits as its factorization.

102120102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33594 (or 33467 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102120102211 its reverse (112201021201), we get a palindrome (214321123412).

The spelling of 102120102211 in words is "one hundred two billion, one hundred twenty million, one hundred two thousand, two hundred eleven".

Divisors: 1 127 191 16129 24257 33149 3080639 4209923 6331459 534660221 804095293 102120102211