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101212011201 = 37289286923
BaseRepresentation
bin101111001000010110…
…1001011101011000001
3100200020122020220001110
41132100231023223001
53124240233324301
6114255100353533
710212061620600
oct1362055135301
9320218226043
10101212011201
1139a185a6054
12177478458a9
13970c94b032
144c81dd9a37
1529758490d6
hex1790b4bac1

101212011201 has 36 divisors (see below), whose sum is σ = 158767381392. Its totient is φ = 57184940736.

The previous prime is 101212011181. The next prime is 101212011247. The reversal of 101212011201 is 102110212101.

It is not a de Polignac number, because 101212011201 - 25 = 101212011169 is a prime.

It is a super-2 number, since 2×1012120112012 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101212001201) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1120926 + ... + 1207848.

Almost surely, 2101212011201 is an apocalyptic number.

It is an amenable number.

101212011201 is a deficient number, since it is larger than the sum of its proper divisors (57555370191).

101212011201 is an frugal number, since it uses more digits than its factorization.

101212011201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87118 (or 87022 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101212011201 its reverse (102110212101), we get a palindrome (203322223302).

Subtracting 101212011201 from its reverse (102110212101), we obtain a square (898200900 = 299702).

The spelling of 101212011201 in words is "one hundred one billion, two hundred twelve million, eleven thousand, two hundred one".

Divisors: 1 3 7 21 49 89 147 267 623 1869 4361 7921 13083 23763 55447 86923 166341 260769 388129 608461 1164387 1825383 4259227 7736147 12777681 23208441 54153029 162459087 379071203 688517083 1137213609 2065551249 4819619581 14458858743 33737337067 101212011201