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102212331011 = 721931791699
BaseRepresentation
bin101111100110001010…
…1000110011000000011
3100202211100112101212022
41133030111012120003
53133312324043021
6114542232552055
710245626323100
oct1371425063003
9322740471768
10102212331011
113a39121813a
121798685262b
13983bc6a94b
144d38bcbaa7
1529d35901ab
hex17cc546603

102212331011 has 48 divisors (see below), whose sum is σ = 126280080000. Its totient is φ = 82487223504.

The previous prime is 102212330999. The next prime is 102212331017. The reversal of 102212331011 is 110133212201.

It is a de Polignac number, because none of the positive numbers 2k-102212331011 is a prime.

It is a super-2 number, since 2×1022123310112 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102212331017) 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 47 ways as a sum of consecutive naturals, for example, 60159440 + ... + 60161138.

It is an arithmetic number, because the mean of its divisors is an integer number (2630835000).

Almost surely, 2102212331011 is an apocalyptic number.

102212331011 is a deficient number, since it is larger than the sum of its proper divisors (24067748989).

102212331011 is an equidigital number, since it uses as much as digits as its factorization.

102212331011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949 (or 1904 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 102212331011 its reverse (110133212201), we get a palindrome (212345543212).

The spelling of 102212331011 in words is "one hundred two billion, two hundred twelve million, three hundred thirty-one thousand, eleven".

Divisors: 1 7 19 49 133 179 361 931 1253 1699 2527 3401 6859 8771 11893 17689 23807 32281 48013 64619 83251 166649 225967 304121 336091 452333 613339 1227761 1581769 2128847 3166331 4293373 5778299 8594327 11653441 14901929 30053611 40448093 60160289 81574087 109787681 283136651 571018609 768513767 2085965939 5379596369 14601761573 102212331011