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20112020021112 = 233844999917287
BaseRepresentation
bin1001001001010101100011…
…10011110001111101111000
32122012200122020220012001120
410210222301303301331320
510114003404111133422
6110435200123545240
74144021414341465
oct444526163617570
978180566805046
1020112020021112
116454506a89988
122309a1698b220
13b2b72b147bb6
144d75d982c66c
1524d25e49845c
hex124ab1cf1f78

20112020021112 has 32 divisors (see below), whose sum is σ = 50280650160000. Its totient is φ = 6703926659424.

The previous prime is 20112020021111. The next prime is 20112020021113. The reversal of 20112020021112 is 21112002021102.

It is an interprime number because it is at equal distance from previous prime (20112020021111) and next prime (20112020021113).

It is a junction number, because it is equal to n+sod(n) for n = 20112020021091 and 20112020021100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112020021111) 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, 2930668 + ... + 6986619.

It is an arithmetic number, because the mean of its divisors is an integer number (1571270317500).

Almost surely, 220112020021112 is an apocalyptic number.

It is an amenable number.

20112020021112 is an abundant number, since it is smaller than the sum of its proper divisors (30168630138888).

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

20112020021112 is a wasteful number, since it uses less digits than its factorization.

20112020021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10001795 (or 10001791 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20112020021112 its reverse (21112002021102), we get a palindrome (41224022042214).

The spelling of 20112020021112 in words is "twenty trillion, one hundred twelve billion, twenty million, twenty-one thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 84499 168998 253497 337996 506994 675992 1013988 2027976 9917287 19834574 29751861 39669148 59503722 79338296 119007444 238014888 838000834213 1676001668426 2514002502639 3352003336852 5028005005278 6704006673704 10056010010556 20112020021112