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102111101222201 = 19263148313779151
BaseRepresentation
bin10111001101111010010111…
…111010100111110100111001
3111101112201121012201020111022
4113031322113322213310321
5101340442013403102301
61001101105312312225
730336166164354161
oct2715722772476471
9441481535636438
10102111101222201
112a599090677665
12b551995242675
1344c9060095286
141b302bcc215a1
15bc12263bcd1b
hex5cde97ea7d39

102111101222201 has 16 divisors (see below), whose sum is σ = 107966821079040. Its totient is φ = 96304022614800.

The previous prime is 102111101222183. The next prime is 102111101222213. The reversal of 102111101222201 is 102222101111201.

It is not a de Polignac number, because 102111101222201 - 246 = 31742357044537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102111101222201.

It is not an unprimeable number, because it can be changed into a prime (102111101222701) 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, 520976 + ... + 14300126.

It is an arithmetic number, because the mean of its divisors is an integer number (6747926317440).

Almost surely, 2102111101222201 is an apocalyptic number.

It is an amenable number.

102111101222201 is a deficient number, since it is larger than the sum of its proper divisors (5855719856839).

102111101222201 is a wasteful number, since it uses less digits than its factorization.

102111101222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13780916.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102111101222201 its reverse (102222101111201), we get a palindrome (204333202333402).

The spelling of 102111101222201 in words is "one hundred two trillion, one hundred eleven billion, one hundred one million, two hundred twenty-two thousand, two hundred one".

Divisors: 1 19 263 1483 4997 28177 390029 7410551 13779151 261803869 3623916713 20434480933 68854417547 388255137727 5374268485379 102111101222201