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20201200220011 = 121571916616669
BaseRepresentation
bin1001001011111011101010…
…10111001111011101101011
32122112012211101011200111011
410211331311113033131223
510121434024224020021
6110544145301044351
74153326400461406
oct445756527173553
978465741150434
1020201200220011
11648930a9752a8
1223231650b66b7
13b36c71173565
144dba598c8d3d
1525072d88ade1
hex125f755cf76b

20201200220011 has 4 divisors (see below), whose sum is σ = 20201218052400. Its totient is φ = 20201182387624.

The previous prime is 20201200219997. The next prime is 20201200220023. The reversal of 20201200220011 is 11002200210202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20201200220011 - 27 = 20201200219883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20201200219973 and 20201200220000.

It is not an unprimeable number, because it can be changed into a prime (20201200220611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7092616 + ... + 9524053.

It is an arithmetic number, because the mean of its divisors is an integer number (5050304513100).

Almost surely, 220201200220011 is an apocalyptic number.

20201200220011 is a deficient number, since it is larger than the sum of its proper divisors (17832389).

20201200220011 is a wasteful number, since it uses less digits than its factorization.

20201200220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17832388.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20201200220011 its reverse (11002200210202), we get a palindrome (31203400430213).

The spelling of 20201200220011 in words is "twenty trillion, two hundred one billion, two hundred million, two hundred twenty thousand, eleven".

Divisors: 1 1215719 16616669 20201200220011