602206243523221 has 2 divisors, whose sum is σ = 602206243523222. Its totient is φ = 602206243523220.

The previous prime is 602206243523219. The next prime is 602206243523243. The reversal of 602206243523221 is 122325342602206.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 564142587842596 + 38063655680625 = 23751686^2 + 6169575^2 .

It is a cyclic number.

It is not a de Polignac number, because 602206243523221 - 2¹ = 602206243523219 is a prime.

It is a super-2 number, since 2×602206243523221² (a number of 30 digits) contains 22 as substring.

Together with 602206243523219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (602206243523201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301103121761610 + 301103121761611.

It is an arithmetic number, because the mean of its divisors is an integer number (301103121761611).

Almost surely, 2^{602206243523221} is an apocalyptic number.

It is an amenable number.

602206243523221 is a deficient number, since it is larger than the sum of its proper divisors (1).

602206243523221 is an equidigital number, since it uses as much as digits as its factorization.

602206243523221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 40.

The spelling of 602206243523221 in words is "six hundred two trillion, two hundred six billion, two hundred forty-three million, five hundred twenty-three thousand, two hundred twenty-one".