221120203013 has 2 divisors, whose sum is σ = 221120203014. Its totient is φ = 221120203012.

The previous prime is 221120202959. The next prime is 221120203019. The reversal of 221120203013 is 310302021122.

221120203013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200508719524 + 20611483489 = 447782^2 + 143567^2 .

It is a cyclic number.

It is not a de Polignac number, because 221120203013 - 2²⁶ = 221053094149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221120202982 and 221120203000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221120203019) 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, 110560101506 + 110560101507.

It is an arithmetic number, because the mean of its divisors is an integer number (110560101507).

Almost surely, 2^221120203013 is an apocalyptic number.

It is an amenable number.

221120203013 is a deficient number, since it is larger than the sum of its proper divisors (1).

221120203013 is an equidigital number, since it uses as much as digits as its factorization.

221120203013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 221120203013 its reverse (310302021122), we get a palindrome (531422224135).

The spelling of 221120203013 in words is "two hundred twenty-one billion, one hundred twenty million, two hundred three thousand, thirteen".