100322420221 has 2 divisors, whose sum is σ = 100322420222. Its totient is φ = 100322420220.

The previous prime is 100322420203. The next prime is 100322420227. The reversal of 100322420221 is 122024223001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93779875225 + 6542544996 = 306235^2 + 80886^2 .

It is a cyclic number.

It is not a de Polignac number, because 100322420221 - 2²¹ = 100320323069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100322420227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50161210110 + 50161210111.

It is an arithmetic number, because the mean of its divisors is an integer number (50161210111).

Almost surely, 2^100322420221 is an apocalyptic number.

It is an amenable number.

100322420221 is a deficient number, since it is larger than the sum of its proper divisors (1).

100322420221 is an equidigital number, since it uses as much as digits as its factorization.

100322420221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 100322420221 its reverse (122024223001), we get a palindrome (222346643222).

The spelling of 100322420221 in words is "one hundred billion, three hundred twenty-two million, four hundred twenty thousand, two hundred twenty-one".