20030322217 has 2 divisors, whose sum is σ = 20030322218. Its totient is φ = 20030322216.

The previous prime is 20030322187. The next prime is 20030322239. The reversal of 20030322217 is 71222303002.

It is an a-pointer prime, because the next prime (20030322239) can be obtained adding 20030322217 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13923056016 + 6107266201 = 117996^2 + 78149^2 .

It is a cyclic number.

It is not a de Polignac number, because 20030322217 - 2⁷ = 20030322089 is a prime.

It is not a weakly prime, because it can be changed into another prime (20030322617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10015161108 + 10015161109.

It is an arithmetic number, because the mean of its divisors is an integer number (10015161109).

Almost surely, 2^20030322217 is an apocalyptic number.

It is an amenable number.

20030322217 is a deficient number, since it is larger than the sum of its proper divisors (1).

20030322217 is an equidigital number, since it uses as much as digits as its factorization.

20030322217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 22.

Adding to 20030322217 its reverse (71222303002), we get a palindrome (91252625219).

The spelling of 20030322217 in words is "twenty billion, thirty million, three hundred twenty-two thousand, two hundred seventeen".