2422403301221 has 2 divisors, whose sum is σ = 2422403301222. Its totient is φ = 2422403301220.

The previous prime is 2422403301187. The next prime is 2422403301247. The reversal of 2422403301221 is 1221033042242.

It is an a-pointer prime, because the next prime (2422403301247) can be obtained adding 2422403301221 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2108115244225 + 314288056996 = 1451935^2 + 560614^2 .

It is a cyclic number.

It is not a de Polignac number, because 2422403301221 - 2³⁸ = 2147525394277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2422403301121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1211201650610 + 1211201650611.

It is an arithmetic number, because the mean of its divisors is an integer number (1211201650611).

Almost surely, 2^{2422403301221} is an apocalyptic number.

It is an amenable number.

2422403301221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2422403301221 is an equidigital number, since it uses as much as digits as its factorization.

2422403301221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 2422403301221 its reverse (1221033042242), we get a palindrome (3643436343463).

The spelling of 2422403301221 in words is "two trillion, four hundred twenty-two billion, four hundred three million, three hundred one thousand, two hundred twenty-one".