102101020211 has 2 divisors, whose sum is σ = 102101020212. Its totient is φ = 102101020210.

The previous prime is 102101020199. The next prime is 102101020213. The reversal of 102101020211 is 112020101201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102101020211 is a prime.

Together with 102101020213, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 102101020192 and 102101020201.

It is not a weakly prime, because it can be changed into another prime (102101020213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050510105 + 51050510106.

It is an arithmetic number, because the mean of its divisors is an integer number (51050510106).

Almost surely, 2^102101020211 is an apocalyptic number.

102101020211 is a deficient number, since it is larger than the sum of its proper divisors (1).

102101020211 is an equidigital number, since it uses as much as digits as its factorization.

102101020211 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 11.

Adding to 102101020211 its reverse (112020101201), we get a palindrome (214121121412).

The spelling of 102101020211 in words is "one hundred two billion, one hundred one million, twenty thousand, two hundred eleven".