11121011000221 has 2 divisors, whose sum is σ = 11121011000222. Its totient is φ = 11121011000220.

The previous prime is 11121011000191. The next prime is 11121011000233. The reversal of 11121011000221 is 12200011012111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9340083384025 + 1780927616196 = 3056155^2 + 1334514^2 .

It is a cyclic number.

It is not a de Polignac number, because 11121011000221 - 2¹⁵ = 11121010967453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11121011000291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560505500110 + 5560505500111.

It is an arithmetic number, because the mean of its divisors is an integer number (5560505500111).

Almost surely, 2^{11121011000221} is an apocalyptic number.

It is an amenable number.

11121011000221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121011000221 is an equidigital number, since it uses as much as digits as its factorization.

11121011000221 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 11121011000221 its reverse (12200011012111), we get a palindrome (23321022012332).

The spelling of 11121011000221 in words is "eleven trillion, one hundred twenty-one billion, eleven million, two hundred twenty-one", and thus it is an aban number.