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20010110012200 = 23527117960127367
BaseRepresentation
bin1001000110010111101110…
…11111111100101100101000
32121211221120222020100011001
410203023313133330230220
510110321201130342300
6110320303450444344
74133453115506050
oct443136737745450
977757528210131
1020010110012200
116415270491920
1222b21154336b4
13b21c39a0bc89
144d26ccc5a560
1524a79772516a
hex1232f77fcb28

20010110012200 has 384 divisors, whose sum is σ = 58837434163200. Its totient is φ = 6147498240000.

The previous prime is 20010110012147. The next prime is 20010110012231. The reversal of 20010110012200 is 221001101002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 731162917 + ... + 731190283.

It is an arithmetic number, because the mean of its divisors is an integer number (153222484800).

Almost surely, 220010110012200 is an apocalyptic number.

20010110012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20010110012200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29418717081600).

20010110012200 is an abundant number, since it is smaller than the sum of its proper divisors (38827324151000).

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

20010110012200 is a wasteful number, since it uses less digits than its factorization.

20010110012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28081 (or 28072 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20010110012200 its reverse (221001101002), we get a palindrome (20231111113202).

The spelling of 20010110012200 in words is "twenty trillion, ten billion, one hundred ten million, twelve thousand, two hundred".