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20122010100101 = 721371119444167
BaseRepresentation
bin1001001001101000001010…
…10000111010000110000101
32122020122102110222210010002
410210310011100322012011
510114134334041200401
6110443531314011045
74144524111533300
oct444640520720605
978218373883102
1020122010100101
116458773138108
12230b944576a85
13b2c660a70740
144d7ca652bb37
1524d646546a6b
hex124d0543a185

20122010100101 has 24 divisors (see below), whose sum is σ = 25208204071680. Its totient is φ = 15920451584352.

The previous prime is 20122010100067. The next prime is 20122010100113. The reversal of 20122010100101 is 10100101022102.

It is not a de Polignac number, because 20122010100101 - 222 = 20122005905797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122010100001) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 45080720 + ... + 45524886.

It is an arithmetic number, because the mean of its divisors is an integer number (1050341836320).

Almost surely, 220122010100101 is an apocalyptic number.

It is an amenable number.

20122010100101 is a deficient number, since it is larger than the sum of its proper divisors (5086193971579).

20122010100101 is a wasteful number, since it uses less digits than its factorization.

20122010100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515313 (or 515306 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20122010100101 its reverse (10100101022102), we get a palindrome (30222111122203).

The spelling of 20122010100101 in words is "twenty trillion, one hundred twenty-two billion, ten million, one hundred thousand, one hundred one".

Divisors: 1 7 13 49 91 637 71119 444167 497833 924547 3109169 3484831 5774171 6471829 21764183 40419197 45302803 282934379 31588712873 221120990111 410653267349 1547846930777 2874572871443 20122010100101