102211297 has 2 divisors, whose sum is σ = 102211298. Its totient is φ = 102211296.

The previous prime is 102211271. The next prime is 102211303. The reversal of 102211297 is 792112201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87534736 + 14676561 = 9356^2 + 3831^2 .

It is an emirp because it is prime and its reverse (792112201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102211297 - 2¹¹ = 102209249 is a prime.

It is not a weakly prime, because it can be changed into another prime (102211217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51105648 + 51105649.

It is an arithmetic number, because the mean of its divisors is an integer number (51105649).

Almost surely, 2^102211297 is an apocalyptic number.

It is an amenable number.

102211297 is a deficient number, since it is larger than the sum of its proper divisors (1).

102211297 is an equidigital number, since it uses as much as digits as its factorization.

102211297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 102211297 is about 10109.9602867667. The cubic root of 102211297 is about 467.5552807174. Note that the first 3 decimals are identical.

Adding to 102211297 its reverse (792112201), we get a palindrome (894323498).

The spelling of 102211297 in words is "one hundred two million, two hundred eleven thousand, two hundred ninety-seven".