102212387 has 2 divisors, whose sum is σ = 102212388. Its totient is φ = 102212386.

The previous prime is 102212377. The next prime is 102212417. The reversal of 102212387 is 783212201.

It is a weak prime.

It is an emirp because it is prime and its reverse (783212201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102212387 - 2⁴ = 102212371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102212377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51106193 + 51106194.

It is an arithmetic number, because the mean of its divisors is an integer number (51106194).

Almost surely, 2^102212387 is an apocalyptic number.

102212387 is a deficient number, since it is larger than the sum of its proper divisors (1).

102212387 is an equidigital number, since it uses as much as digits as its factorization.

102212387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 102212387 is about 10110.0141938575. The cubic root of 102212387 is about 467.5569427432.

Adding to 102212387 its reverse (783212201), we get a palindrome (885424588).

The spelling of 102212387 in words is "one hundred two million, two hundred twelve thousand, three hundred eighty-seven".