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102222123212191 = 5009100392032841
BaseRepresentation
bin10111001111100001110001…
…010101111001110110011111
3111101221100011112011200120111
4113033201301111321312133
5101344301402020242231
61001224110051030451
730350206335613243
oct2717416125716637
9441840145150514
10102222123212191
112a63118269a9a4
12b56b3ba29b427
13450667422b488
141b35811a38423
15bc407308c4b1
hex5cf871579d9f

102222123212191 has 8 divisors (see below), whose sum is σ = 102252765736800. Its totient is φ = 102191484783360.

The previous prime is 102222123212159. The next prime is 102222123212201. The reversal of 102222123212191 is 191212321222201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102222123212191 - 25 = 102222123212159 is a prime.

It is a super-2 number, since 2×1022221232121912 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222123212291) 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 7 ways as a sum of consecutive naturals, for example, 49268931 + ... + 51301771.

It is an arithmetic number, because the mean of its divisors is an integer number (12781595717100).

Almost surely, 2102222123212191 is an apocalyptic number.

102222123212191 is a deficient number, since it is larger than the sum of its proper divisors (30642524609).

102222123212191 is a wasteful number, since it uses less digits than its factorization.

102222123212191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047889.

The product of its (nonzero) digits is 3456, while the sum is 31.

Adding to 102222123212191 its reverse (191212321222201), we get a palindrome (293434444434392).

The spelling of 102222123212191 in words is "one hundred two trillion, two hundred twenty-two billion, one hundred twenty-three million, two hundred twelve thousand, one hundred ninety-one".

Divisors: 1 5009 10039 2032841 50285351 10182500569 20407690799 102222123212191