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20020112212111 = 113135814729077
BaseRepresentation
bin1001000110101010010111…
…01011010100000010001111
32121212220102001010201222121
410203111023223110002033
510111002142211241421
6110325040152353411
74134256021012534
oct443251353240217
977786361121877
1020020112212111
116419533469740
1222b40470a5867
13b22b71cb986b
144d2d9b3d2d8b
1524ab808b9d41
hex12354bad408f

20020112212111 has 8 divisors (see below), whose sum is σ = 21909899165904. Its totient is φ = 18141954717120.

The previous prime is 20020112212109. The next prime is 20020112212153. The reversal of 20020112212111 is 11121221102002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20020112212111 - 21 = 20020112212109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020112212211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2907361096 + ... + 2907367981.

It is an arithmetic number, because the mean of its divisors is an integer number (2738737395738).

Almost surely, 220020112212111 is an apocalyptic number.

20020112212111 is a deficient number, since it is larger than the sum of its proper divisors (1889786953793).

20020112212111 is a wasteful number, since it uses less digits than its factorization.

20020112212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5814729401.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20020112212111 its reverse (11121221102002), we get a palindrome (31141333314113).

The spelling of 20020112212111 in words is "twenty trillion, twenty billion, one hundred twelve million, two hundred twelve thousand, one hundred eleven".

Divisors: 1 11 313 3443 5814729077 63962019847 1820010201101 20020112212111