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101220020211 = 3971812637307
BaseRepresentation
bin101111001000100101…
…1101110111111110011
3100200021012022210100110
41132101023232333303
53124244311121321
6114255544152403
710212216655512
oct1362113567763
9320235283313
10101220020211
1139a22076372
121774a468703
1397114c35ab
144c830c2679
1529763cc176
hex17912eeff3

101220020211 has 32 divisors (see below), whose sum is σ = 137644835328. Its totient is φ = 66153784320.

The previous prime is 101220020201. The next prime is 101220020219. The reversal of 101220020211 is 112020022101.

It is not a de Polignac number, because 101220020211 - 29 = 101220019699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101220020219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13848820 + ... + 13856126.

It is an arithmetic number, because the mean of its divisors is an integer number (4301401104).

Almost surely, 2101220020211 is an apocalyptic number.

101220020211 is a deficient number, since it is larger than the sum of its proper divisors (36424815117).

101220020211 is a wasteful number, since it uses less digits than its factorization.

101220020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7851.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101220020211 its reverse (112020022101), we get a palindrome (213240042312).

The spelling of 101220020211 in words is "one hundred one billion, two hundred twenty million, twenty thousand, two hundred eleven".

Divisors: 1 3 97 181 263 291 543 789 7307 17557 21921 25511 47603 52671 76533 142809 708779 1322567 1921741 2126337 3967701 4617491 5765223 13852473 128288999 186408877 347835121 384866997 559226631 1043505363 33740006737 101220020211