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11111022101201 = 117179559178819
BaseRepresentation
bin1010000110101111110010…
…0001101000001011010001
31110100012111020022202221112
42201223330201220023101
52424020333124214301
635344155540303105
72224513325364551
oct241537441501321
943305436282845
1011111022101201
1135a4181348860
1212b54829a1a95
136279c35c8a69
142a5ac23bb161
1514405339b9bb
hexa1afc8682d1

11111022101201 has 16 divisors (see below), whose sum is σ = 12292058188800. Its totient is φ = 9958481710800.

The previous prime is 11111022101191. The next prime is 11111022101203. The reversal of 11111022101201 is 10210122011111.

It is a cyclic number.

It is not a de Polignac number, because 11111022101201 - 234 = 11093842232017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11111022101203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62046170 + ... + 62224988.

It is an arithmetic number, because the mean of its divisors is an integer number (768253636800).

Almost surely, 211111022101201 is an apocalyptic number.

11111022101201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11111022101201 is a deficient number, since it is larger than the sum of its proper divisors (1181036087599).

11111022101201 is a wasteful number, since it uses less digits than its factorization.

11111022101201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258460.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11111022101201 its reverse (10210122011111), we get a palindrome (21321144112312).

The spelling of 11111022101201 in words is "eleven trillion, one hundred eleven billion, twenty-two million, one hundred one thousand, two hundred one".

Divisors: 1 11 71 781 79559 178819 875149 1967009 5648689 12696149 62135579 139657639 14226660821 156493269031 1010092918291 11111022101201