11102412221 has 2 divisors, whose sum is σ = 11102412222. Its totient is φ = 11102412220.

The previous prime is 11102412203. The next prime is 11102412301. The reversal of 11102412221 is 12221420111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10897063321 + 205348900 = 104389^2 + 14330^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11102412221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11102412221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11102414221) 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, 5551206110 + 5551206111.

It is an arithmetic number, because the mean of its divisors is an integer number (5551206111).

Almost surely, 2^11102412221 is an apocalyptic number.

It is an amenable number.

11102412221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11102412221 is an equidigital number, since it uses as much as digits as its factorization.

11102412221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11102412221 its reverse (12221420111), we get a palindrome (23323832332).

The spelling of 11102412221 in words is "eleven billion, one hundred two million, four hundred twelve thousand, two hundred twenty-one".