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102212233231 is a prime number
BaseRepresentation
bin101111100110001010…
…0101110100000001111
3100202211100100102201211
41133030110232200033
53133312312430411
6114542230515251
710245625435033
oct1371424564017
9322740312654
10102212233231
113a391160729
1217986805b27
13983bc352a4
144d38ba41c3
1529d3571221
hex17cc52e80f

102212233231 has 2 divisors, whose sum is σ = 102212233232. Its totient is φ = 102212233230.

The previous prime is 102212233229. The next prime is 102212233271. The reversal of 102212233231 is 132332212201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102212233231 - 21 = 102212233229 is a prime.

It is a super-2 number, since 2×1022122332312 (a number of 23 digits) contains 22 as substring.

Together with 102212233229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102212233271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51106116615 + 51106116616.

It is an arithmetic number, because the mean of its divisors is an integer number (51106116616).

Almost surely, 2102212233231 is an apocalyptic number.

102212233231 is a deficient number, since it is larger than the sum of its proper divisors (1).

102212233231 is an equidigital number, since it uses as much as digits as its factorization.

102212233231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 102212233231 its reverse (132332212201), we get a palindrome (234544445432).

The spelling of 102212233231 in words is "one hundred two billion, two hundred twelve million, two hundred thirty-three thousand, two hundred thirty-one".