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102010122212 = 2279349321397
BaseRepresentation
bin101111100000001000…
…1101110111111100100
3100202022021001010112112
41133000101232333210
53132404042402322
6114510210540152
710240622506055
oct1370021567744
9322267033475
10102010122212
113a298066729
121792ab97658
1398090bc17b
144d19dd272c
1529c094b5e2
hex17c046efe4

102010122212 has 12 divisors (see below), whose sum is σ = 178520519100. Its totient is φ = 51004259616.

The previous prime is 102010122199. The next prime is 102010122217. The reversal of 102010122212 is 212221010201.

It can be written as a sum of positive squares in 2 ways, for example, as 8211259456 + 93798862756 = 90616^2 + 306266^2 .

It is not an unprimeable number, because it can be changed into a prime (102010122217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156698 + ... + 478094.

It is an arithmetic number, because the mean of its divisors is an integer number (14876709925).

Almost surely, 2102010122212 is an apocalyptic number.

It is an amenable number.

102010122212 is a deficient number, since it is larger than the sum of its proper divisors (76510396888).

102010122212 is a wasteful number, since it uses less digits than its factorization.

102010122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400750 (or 400748 counting only the distinct ones).

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

Adding to 102010122212 its reverse (212221010201), we get a palindrome (314231132413).

The spelling of 102010122212 in words is "one hundred two billion, ten million, one hundred twenty-two thousand, two hundred twelve".

Divisors: 1 2 4 79349 158698 317396 321397 642794 1285588 25502530553 51005061106 102010122212