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20020210011212 = 22191231213991727
BaseRepresentation
bin1001000110101010100011…
…00000011000110001001100
32121212220122212011110010112
410203111101200120301030
510111002342230324322
6110325054004455152
74134261316210235
oct443252140306114
977786585143115
1020020210011212
116419583697644
1222b40739aa4b8
13b22b8933c658
144d2daa3b008c
1524ab892875e2
hex123551818c4c

20020210011212 has 24 divisors (see below), whose sum is σ = 36909293245440. Its totient is φ = 9475553627280.

The previous prime is 20020210011169. The next prime is 20020210011247. The reversal of 20020210011212 is 21211001202002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106902308 + ... + 107089419.

It is an arithmetic number, because the mean of its divisors is an integer number (1537887218560).

Almost surely, 220020210011212 is an apocalyptic number.

It is an amenable number.

20020210011212 is a deficient number, since it is larger than the sum of its proper divisors (16889083234228).

20020210011212 is a wasteful number, since it uses less digits than its factorization.

20020210011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213992981 (or 213992979 counting only the distinct ones).

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

Adding to 20020210011212 its reverse (21211001202002), we get a palindrome (41231211213214).

The spelling of 20020210011212 in words is "twenty trillion, twenty billion, two hundred ten million, eleven thousand, two hundred twelve".

Divisors: 1 2 4 19 38 76 1231 2462 4924 23389 46778 93556 213991727 427983454 855966908 4065842813 8131685626 16263371252 263423815937 526847631874 1053695263748 5005052502803 10010105005606 20020210011212