11020002012221 has 2 divisors, whose sum is σ = 11020002012222. Its totient is φ = 11020002012220.

The previous prime is 11020002012181. The next prime is 11020002012247. The reversal of 11020002012221 is 12221020002011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7839361612996 + 3180640399225 = 2799886^2 + 1783435^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020002012221 - 2³⁰ = 11018928270397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11020002012196 and 11020002012205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11020002012821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510001006110 + 5510001006111.

It is an arithmetic number, because the mean of its divisors is an integer number (5510001006111).

Almost surely, 2^{11020002012221} is an apocalyptic number.

It is an amenable number.

11020002012221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11020002012221 is an equidigital number, since it uses as much as digits as its factorization.

11020002012221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11020002012221 its reverse (12221020002011), we get a palindrome (23241022014232).

The spelling of 11020002012221 in words is "eleven trillion, twenty billion, two million, twelve thousand, two hundred twenty-one".