11122221220213 has 2 divisors, whose sum is σ = 11122221220214. Its totient is φ = 11122221220212.

The previous prime is 11122221220153. The next prime is 11122221220261. The reversal of 11122221220213 is 31202212222111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6832985544004 + 4289235676209 = 2613998^2 + 2071047^2 .

It is a cyclic number.

It is not a de Polignac number, because 11122221220213 - 2¹³ = 11122221212021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11122221226213) 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, 5561110610106 + 5561110610107.

It is an arithmetic number, because the mean of its divisors is an integer number (5561110610107).

Almost surely, 2^{11122221220213} is an apocalyptic number.

It is an amenable number.

11122221220213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122221220213 is an equidigital number, since it uses as much as digits as its factorization.

11122221220213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 11122221220213 its reverse (31202212222111), we get a palindrome (42324433442324).

The spelling of 11122221220213 in words is "eleven trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred twenty thousand, two hundred thirteen".