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102211102011111 = 31132519291293031
BaseRepresentation
bin10111001111010111100000…
…011011010110111011100111
3111101220021201102211122220220
4113033113200123112323213
5101344111314103323421
61001215044304255423
730346336251136542
oct2717274033267347
9441807642748826
10102211102011111
112a6275374a1455
12b569243311573
134505608abcb12
141b35088009859
15bc3b2a7113c6
hex5cf5e06d6ee7

102211102011111 has 32 divisors (see below), whose sum is σ = 138183950661120. Its totient is φ = 67196183040000.

The previous prime is 102211102011107. The next prime is 102211102011131. The reversal of 102211102011111 is 111110201112201.

It is not a de Polignac number, because 102211102011111 - 22 = 102211102011107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102211102011131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78401166 + ... + 79694196.

It is an arithmetic number, because the mean of its divisors is an integer number (4318248458160).

Almost surely, 2102211102011111 is an apocalyptic number.

102211102011111 is a deficient number, since it is larger than the sum of its proper divisors (35972848650009).

102211102011111 is a wasteful number, since it uses less digits than its factorization.

102211102011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294327.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 102211102011111 its reverse (111110201112201), we get a palindrome (213321303123312).

The spelling of 102211102011111 in words is "one hundred two trillion, two hundred eleven billion, one hundred two million, eleven thousand, one hundred eleven".

Divisors: 1 3 113 251 339 753 929 2787 28363 85089 104977 233179 314931 699537 1293031 3879093 26349227 79047681 146112503 324550781 438337509 973652343 1201225799 3603677397 36674238253 110022714759 135738515287 301507675549 407215545861 904523026647 34070367337037 102211102011111