20112022122217 has 2 divisors, whose sum is σ = 20112022122218. Its totient is φ = 20112022122216.

The previous prime is 20112022122091. The next prime is 20112022122233. The reversal of 20112022122217 is 71222122021102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12165509192281 + 7946512929936 = 3487909^2 + 2818956^2 .

It is a cyclic number.

It is not a de Polignac number, because 20112022122217 - 2¹⁹ = 20112021597929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20112022122191 and 20112022122200.

It is not a weakly prime, because it can be changed into another prime (20112022122317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056011061108 + 10056011061109.

It is an arithmetic number, because the mean of its divisors is an integer number (10056011061109).

Almost surely, 2^{20112022122217} is an apocalyptic number.

It is an amenable number.

20112022122217 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112022122217 is an equidigital number, since it uses as much as digits as its factorization.

20112022122217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 20112022122217 its reverse (71222122021102), we get a palindrome (91334144143319).

The spelling of 20112022122217 in words is "twenty trillion, one hundred twelve billion, twenty-two million, one hundred twenty-two thousand, two hundred seventeen".