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102101212122 = 23713198794111
BaseRepresentation
bin101111100010110110…
…1001101101111011010
3100202112121102222101220
41133011231031233122
53133100402241442
6114523223152510
710243106661240
oct1370555155732
9322477388356
10102101212122
113a334521948
12179555a5736
139821c33220
144d28144790
1529c8940eec
hex17c5b4dbda

102101212122 has 64 divisors (see below), whose sum is σ = 251455217664. Its totient is φ = 26913954240.

The previous prime is 102101212069. The next prime is 102101212183. The reversal of 102101212122 is 221212101201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1037847 + ... + 1131957.

It is an arithmetic number, because the mean of its divisors is an integer number (3928987776).

Almost surely, 2102101212122 is an apocalyptic number.

102101212122 is an abundant number, since it is smaller than the sum of its proper divisors (149354005542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102101212122 is a wasteful number, since it uses less digits than its factorization.

102101212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96123.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102101212122 its reverse (221212101201), we get a palindrome (323313313323).

The spelling of 102101212122 in words is "one hundred two billion, one hundred one million, two hundred twelve thousand, one hundred twenty-two".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 182 273 546 1987 3974 5961 11922 13909 25831 27818 41727 51662 77493 83454 94111 154986 180817 188222 282333 361634 542451 564666 658777 1084902 1223443 1317554 1976331 2446886 3670329 3952662 7340658 8564101 17128202 25692303 51384606 186998557 373997114 560995671 1121991342 1308989899 2430981241 2617979798 3926969697 4861962482 7292943723 7853939394 14585887446 17016868687 34033737374 51050606061 102101212122