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20201201011012 = 2272322131998557
BaseRepresentation
bin1001001011111011101010…
…11010010000100101000100
32122112012211102122212112111
410211331311122100211010
510121434024424323022
6110544145330030404
74153326410264500
oct445756532204504
978465742585474
1020201201011012
11648931036561a
122323165418404
13b36c7138c5c8
144dba59a53300
1525072d995477
hex125f75690944

20201201011012 has 36 divisors (see below), whose sum is σ = 41136642196524. Its totient is φ = 8654969426880.

The previous prime is 20201201010997. The next prime is 20201201011031. The reversal of 20201201011012 is 21011010210202.

It can be written as a sum of positive squares in 2 ways, for example, as 16212009699396 + 3989191311616 = 4026414^2 + 1997296^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20201201010983 and 20201201011001.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15367963 + ... + 16630594.

It is an arithmetic number, because the mean of its divisors is an integer number (1142684505459).

Almost surely, 220201201011012 is an apocalyptic number.

It is an amenable number.

20201201011012 is an abundant number, since it is smaller than the sum of its proper divisors (20935441185512).

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

20201201011012 is a wasteful number, since it uses less digits than its factorization.

20201201011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32001796 (or 32001787 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20201201011012 its reverse (21011010210202), we get a palindrome (41212211221214).

The spelling of 20201201011012 in words is "twenty trillion, two hundred one billion, two hundred one million, eleven thousand, twelve".

Divisors: 1 2 4 7 14 28 49 98 196 3221 6442 12884 22547 45094 90188 157829 315658 631316 31998557 63997114 127994228 223989899 447979798 895959596 1567929293 3135858586 6271717172 103067352097 206134704194 412269408388 721471464679 1442942929358 2885885858716 5050300252753 10100600505506 20201201011012