102210211 has 2 divisors, whose sum is σ = 102210212. Its totient is φ = 102210210.

The previous prime is 102210209. The next prime is 102210221. The reversal of 102210211 is 112012201.

It is an a-pointer prime, because the next prime (102210221) can be obtained adding 102210211 to its sum of digits (10).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102210211 - 2¹ = 102210209 is a prime.

Together with 102210209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (102210221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51105105 + 51105106.

It is an arithmetic number, because the mean of its divisors is an integer number (51105106).

Almost surely, 2^102210211 is an apocalyptic number.

102210211 is a deficient number, since it is larger than the sum of its proper divisors (1).

102210211 is an equidigital number, since it uses as much as digits as its factorization.

102210211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 102210211 is about 10109.9065772143. The cubic root of 102210211 is about 467.5536247790.

Adding to 102210211 its reverse (112012201), we get a palindrome (214222412).

The spelling of 102210211 in words is "one hundred two million, two hundred ten thousand, two hundred eleven".