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102222102331 = 1719787402131
BaseRepresentation
bin101111100110011101…
…0010111111100111011
3100202212000220211121001
41133030322113330323
53133322324233311
6114543222225431
710246105350646
oct1371472277473
9322760824531
10102222102331
113a396791508
1217989b85277
139840cac3ab
144d3a212a5d
1529d43704c1
hex17cce97f3b

102222102331 has 16 divisors (see below), whose sum is σ = 114076805760. Its totient is φ = 91029363840.

The previous prime is 102222102329. The next prime is 102222102337. The reversal of 102222102331 is 133201222201.

It is a cyclic number.

It is not a de Polignac number, because 102222102331 - 21 = 102222102329 is a prime.

It is a super-2 number, since 2×1022221023312 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102222102299 and 102222102308.

It is not an unprimeable number, because it can be changed into a prime (102222102337) 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, 53136 + ... + 455266.

It is an arithmetic number, because the mean of its divisors is an integer number (7129800360).

Almost surely, 2102222102331 is an apocalyptic number.

102222102331 is a deficient number, since it is larger than the sum of its proper divisors (11854703429).

102222102331 is a wasteful number, since it uses less digits than its factorization.

102222102331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402954.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 102222102331 its reverse (133201222201), we get a palindrome (235423324532).

The spelling of 102222102331 in words is "one hundred two billion, two hundred twenty-two million, one hundred two thousand, three hundred thirty-one".

Divisors: 1 17 19 323 787 13379 14953 254201 402131 6836227 7640489 129888313 316477097 5380110649 6013064843 102222102331