302225421300421 has 2 divisors, whose sum is σ = 302225421300422. Its totient is φ = 302225421300420.

The previous prime is 302225421300419. The next prime is 302225421300427. The reversal of 302225421300421 is 124003124522203.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201256385028196 + 100969036272225 = 14186486^2 + 10048335^2 .

It is an emirp because it is prime and its reverse (124003124522203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 302225421300421 - 2¹ = 302225421300419 is a prime.

Together with 302225421300419, 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 (302225421300427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151112710650210 + 151112710650211.

It is an arithmetic number, because the mean of its divisors is an integer number (151112710650211).

Almost surely, 2^{302225421300421} is an apocalyptic number.

It is an amenable number.

302225421300421 is a deficient number, since it is larger than the sum of its proper divisors (1).

302225421300421 is an equidigital number, since it uses as much as digits as its factorization.

302225421300421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 302225421300421 its reverse (124003124522203), we get a palindrome (426228545822624).

The spelling of 302225421300421 in words is "three hundred two trillion, two hundred twenty-five billion, four hundred twenty-one million, three hundred thousand, four hundred twenty-one".