102211221011 has 2 divisors, whose sum is σ = 102211221012. Its totient is φ = 102211221010.

The previous prime is 102211220999. The next prime is 102211221041. The reversal of 102211221011 is 110122112201.

It is a weak prime.

It is an emirp because it is prime and its reverse (110122112201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102211221011 - 2²² = 102207026707 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (102211221041) 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, 51105610505 + 51105610506.

It is an arithmetic number, because the mean of its divisors is an integer number (51105610506).

Almost surely, 2^102211221011 is an apocalyptic number.

102211221011 is a deficient number, since it is larger than the sum of its proper divisors (1).

102211221011 is an equidigital number, since it uses as much as digits as its factorization.

102211221011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102211221011 its reverse (110122112201), we get a palindrome (212333333212).

The spelling of 102211221011 in words is "one hundred two billion, two hundred eleven million, two hundred twenty-one thousand, eleven".