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101220102001 = 1098539108751
BaseRepresentation
bin101111001000100110…
…0000010111101110001
3100200021012110221112201
41132101030002331301
53124244321231001
6114255550023201
710212220446124
oct1362114027561
9320235427481
10101220102001
1139a22121867
121774a4a7b01
1397115218a5
144c831043bb
1529763e6501
hex1791302f71

101220102001 has 8 divisors (see below), whose sum is σ = 102161628800. Its totient is φ = 100278810000.

The previous prime is 101220101989. The next prime is 101220102031. The reversal of 101220102001 is 100201022101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101220102001 - 219 = 101219577713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101220102031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 876376 + ... + 985126.

It is an arithmetic number, because the mean of its divisors is an integer number (12770203600).

Almost surely, 2101220102001 is an apocalyptic number.

It is an amenable number.

101220102001 is a deficient number, since it is larger than the sum of its proper divisors (941526799).

101220102001 is a wasteful number, since it uses less digits than its factorization.

101220102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117399.

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

Adding to 101220102001 its reverse (100201022101), we get a palindrome (201421124102).

The spelling of 101220102001 in words is "one hundred one billion, two hundred twenty million, one hundred two thousand, one".

Divisors: 1 109 8539 108751 930751 11853859 928624789 101220102001