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102222011009 = 580731760233
BaseRepresentation
bin101111100110011101…
…0000001101010000001
3100202212000202012022202
41133030322001222001
53133322313323014
6114543220242545
710246104520466
oct1371472015201
9322760665282
10102222011009
113a396729938
1217989b40455
139840c79961
144d3a1cb66d
1529d43533de
hex17cce81a81

102222011009 has 4 divisors (see below), whose sum is σ = 102223829316. Its totient is φ = 102220192704.

The previous prime is 102222010993. The next prime is 102222011011. The reversal of 102222011009 is 900110222201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 900110222201 = 7109126615589.

It can be written as a sum of positive squares in 2 ways, for example, as 43996321009 + 58225690000 = 209753^2 + 241300^2 .

It is a cyclic number.

It is not a de Polignac number, because 102222011009 - 24 = 102222010993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102222016009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822044 + ... + 938189.

It is an arithmetic number, because the mean of its divisors is an integer number (25555957329).

Almost surely, 2102222011009 is an apocalyptic number.

It is an amenable number.

102222011009 is a deficient number, since it is larger than the sum of its proper divisors (1818307).

102222011009 is an equidigital number, since it uses as much as digits as its factorization.

102222011009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818306.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 102222011009 in words is "one hundred two billion, two hundred twenty-two million, eleven thousand, nine".

Divisors: 1 58073 1760233 102222011009