22000313221 has 2 divisors, whose sum is σ = 22000313222. Its totient is φ = 22000313220.

The previous prime is 22000313201. The next prime is 22000313233. The reversal of 22000313221 is 12231300022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11451996196 + 10548317025 = 107014^2 + 102705^2 .

It is a cyclic number.

It is not a de Polignac number, because 22000313221 - 2¹¹ = 22000311173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22000313195 and 22000313204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22000313201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000156610 + 11000156611.

It is an arithmetic number, because the mean of its divisors is an integer number (11000156611).

Almost surely, 2^22000313221 is an apocalyptic number.

It is an amenable number.

22000313221 is a deficient number, since it is larger than the sum of its proper divisors (1).

22000313221 is an equidigital number, since it uses as much as digits as its factorization.

22000313221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22000313221 its reverse (12231300022), we get a palindrome (34231613243).

The spelling of 22000313221 in words is "twenty-two billion, three hundred thirteen thousand, two hundred twenty-one".