21002220011341 has 2 divisors, whose sum is σ = 21002220011342. Its totient is φ = 21002220011340.

The previous prime is 21002220011189. The next prime is 21002220011369. The reversal of 21002220011341 is 14311002220012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15366125601225 + 5636094410116 = 3919965^2 + 2374046^2 .

It is a cyclic number.

It is not a de Polignac number, because 21002220011341 - 2¹⁵ = 21002219978573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21002220911341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10501110005670 + 10501110005671.

It is an arithmetic number, because the mean of its divisors is an integer number (10501110005671).

Almost surely, 2^{21002220011341} is an apocalyptic number.

It is an amenable number.

21002220011341 is a deficient number, since it is larger than the sum of its proper divisors (1).

21002220011341 is an equidigital number, since it uses as much as digits as its factorization.

21002220011341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21002220011341 its reverse (14311002220012), we get a palindrome (35313222231353).

The spelling of 21002220011341 in words is "twenty-one trillion, two billion, two hundred twenty million, eleven thousand, three hundred forty-one".