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102122322212 = 2231780538109
BaseRepresentation
bin101111100011011110…
…1101111100100100100
3100202121002011111000002
41133012331233210210
53133121303302322
6114525255440432
710243454262551
oct1370675574444
9322532144002
10102122322212
113a3454301a9
1217960686118
1398264149c1
144d2ac7ba28
1529ca710c92
hex17c6f6f924

102122322212 has 12 divisors (see below), whose sum is σ = 179277832860. Its totient is φ = 50900084256.

The previous prime is 102122322199. The next prime is 102122322283. The reversal of 102122322212 is 212223221201.

It can be written as a sum of positive squares in 2 ways, for example, as 9375274276 + 92747047936 = 96826^2 + 304544^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40267787 + ... + 40270322.

It is an arithmetic number, because the mean of its divisors is an integer number (14939819405).

Almost surely, 2102122322212 is an apocalyptic number.

It is an amenable number.

102122322212 is a deficient number, since it is larger than the sum of its proper divisors (77155510648).

102122322212 is a wasteful number, since it uses less digits than its factorization.

102122322212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80538430 (or 80538428 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 102122322212 its reverse (212223221201), we get a palindrome (314345543413).

The spelling of 102122322212 in words is "one hundred two billion, one hundred twenty-two million, three hundred twenty-two thousand, two hundred twelve".

Divisors: 1 2 4 317 634 1268 80538109 161076218 322152436 25530580553 51061161106 102122322212