302212002221 has 2 divisors, whose sum is σ = 302212002222. Its totient is φ = 302212002220.

The previous prime is 302212002133. The next prime is 302212002223. The reversal of 302212002221 is 122200212203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231288855625 + 70923146596 = 480925^2 + 266314^2 .

It is an emirp because it is prime and its reverse (122200212203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 302212002221 - 2²² = 302207807917 is a prime.

Together with 302212002223, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 302212002221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (302212002223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151106001110 + 151106001111.

It is an arithmetic number, because the mean of its divisors is an integer number (151106001111).

Almost surely, 2^302212002221 is an apocalyptic number.

It is an amenable number.

302212002221 is a deficient number, since it is larger than the sum of its proper divisors (1).

302212002221 is an equidigital number, since it uses as much as digits as its factorization.

302212002221 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 17.

Adding to 302212002221 its reverse (122200212203), we get a palindrome (424412214424).

The spelling of 302212002221 in words is "three hundred two billion, two hundred twelve million, two thousand, two hundred twenty-one".