102110212111 has 2 divisors, whose sum is σ = 102110212112. Its totient is φ = 102110212110.

The previous prime is 102110212073. The next prime is 102110212123. The reversal of 102110212111 is 111212011201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102110212111 - 2¹¹ = 102110210063 is a prime.

It is a super-2 number, since 2×102110212111² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102110212091 and 102110212100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102110212811) 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, 51055106055 + 51055106056.

It is an arithmetic number, because the mean of its divisors is an integer number (51055106056).

Almost surely, 2^102110212111 is an apocalyptic number.

102110212111 is a deficient number, since it is larger than the sum of its proper divisors (1).

102110212111 is an equidigital number, since it uses as much as digits as its factorization.

102110212111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102110212111 its reverse (111212011201), we get a palindrome (213322223312).

The spelling of 102110212111 in words is "one hundred two billion, one hundred ten million, two hundred twelve thousand, one hundred eleven".