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102122012101212 = 223253268931990223
BaseRepresentation
bin10111001110000100100010…
…010000010100101001011100
3111101120202202121110022201100
4113032010202100110221130
5101341131340044214322
61001110112114313100
730340033442325105
oct2716044220245134
9441522677408640
10102122012101212
112a5a277a574544
12b553b1b288790
1344ca0ab6b7abc
141b30a35d333ac
15bc1664205dac
hex5ce122414a5c

102122012101212 has 72 divisors (see below), whose sum is σ = 263022264033984. Its totient is φ = 33397135214976.

The previous prime is 102122012101177. The next prime is 102122012101253. The reversal of 102122012101212 is 212101210221201.

102122012101212 is a `hidden beast` number, since 1 + 0 + 21 + 220 + 1 + 210 + 1 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 50316733 + ... + 52306955.

It is an arithmetic number, because the mean of its divisors is an integer number (3653087000472).

Almost surely, 2102122012101212 is an apocalyptic number.

102122012101212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102122012101212 is an abundant number, since it is smaller than the sum of its proper divisors (160900251932772).

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

102122012101212 is a wasteful number, since it uses less digits than its factorization.

102122012101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017179 (or 2017174 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 102122012101212 its reverse (212101210221201), we get a palindrome (314223222322413).

The spelling of 102122012101212 in words is "one hundred two trillion, one hundred twenty-two billion, twelve million, one hundred one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 53 106 159 212 318 477 636 954 1908 26893 53786 80679 107572 161358 242037 322716 484074 968148 1425329 1990223 2850658 3980446 4275987 5701316 5970669 7960892 8551974 11941338 12827961 17103948 17912007 23882676 25655922 35824014 51311844 71648028 105481819 210963638 316445457 421927276 632890914 949336371 1265781828 1898672742 3797345484 53523067139 107046134278 160569201417 214092268556 321138402834 481707604251 642276805668 963415208502 1926830417004 2836722558367 5673445116734 8510167675101 11346890233468 17020335350202 25530503025303 34040670700404 51061006050606 102122012101212