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102102201212 = 221117711999661
BaseRepresentation
bin101111100010111000…
…0111111001101111100
3100202112200022020011212
41133011300333031330
53133101130414322
6114523300303552
710243121251004
oct1370560771574
9322480266155
10102102201212
113a335037a80
12179559a1bb8
1398221bb49b
144d28321004
1529c8a890e2
hex17c5c3f37c

102102201212 has 96 divisors (see below), whose sum is σ = 210368793600. Its totient is φ = 42844032000.

The previous prime is 102102201203. The next prime is 102102201241. The reversal of 102102201212 is 212102201201.

It is a congruent number.

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, 10563662 + ... + 10573322.

It is an arithmetic number, because the mean of its divisors is an integer number (2191341600).

Almost surely, 2102102201212 is an apocalyptic number.

It is an amenable number.

102102201212 is an abundant number, since it is smaller than the sum of its proper divisors (108266592388).

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

102102201212 is a wasteful number, since it uses less digits than its factorization.

102102201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9963 (or 9961 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102102201212 its reverse (212102201201), we get a palindrome (314204402413).

The spelling of 102102201212 in words is "one hundred two billion, one hundred two million, two hundred one thousand, two hundred twelve".

Divisors: 1 2 4 11 17 22 34 44 68 71 142 187 199 284 374 398 748 781 796 1207 1562 2189 2414 3124 3383 4378 4828 6766 8756 9661 13277 13532 14129 19322 26554 28258 37213 38644 53108 56516 74426 106271 148852 155419 164237 212542 240193 310838 328474 425084 480386 621676 656948 685931 960772 1371862 1806607 1922539 2642123 2743724 3613214 3845078 5284246 7226428 7545241 7690156 10568492 11660827 15090482 21147929 23321654 30180964 32683163 42295858 46643308 65366326 84591716 128269097 130732652 136500269 256538194 273000538 359514793 513076388 546001076 719029586 1438059172 1501502959 2320504573 3003005918 4641009146 6006011836 9282018292 25525550303 51051100606 102102201212