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20002011112220 = 2251000100555611
BaseRepresentation
bin1001000110001000101001…
…10001000110001100011100
32121211011200112201120222112
410203010110301012030130
510110203104321042340
6110312444055133152
74133045324134544
oct443042461061434
977734615646875
1020002011112220
116411894904455
1222b06350741b8
13b21248b4bc77
144d21613aa324
1524a4716e1065
hex123114c4631c

20002011112220 has 12 divisors (see below), whose sum is σ = 42004223335704. Its totient is φ = 8000804444880.

The previous prime is 20002011112159. The next prime is 20002011112261. The reversal of 20002011112220 is 2221111020002.

It is a super-2 number, since 2×200020111122202 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20002011112195 and 20002011112204.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 500050277786 + ... + 500050277825.

It is an arithmetic number, because the mean of its divisors is an integer number (3500351944642).

Almost surely, 220002011112220 is an apocalyptic number.

20002011112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002011112220 is an abundant number, since it is smaller than the sum of its proper divisors (22002212223484).

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

20002011112220 is a wasteful number, since it uses less digits than its factorization.

20002011112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000100555620 (or 1000100555618 counting only the distinct ones).

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

Adding to 20002011112220 its reverse (2221111020002), we get a palindrome (22223122132222).

The spelling of 20002011112220 in words is "twenty trillion, two billion, eleven million, one hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1000100555611 2000201111222 4000402222444 5000502778055 10001005556110 20002011112220