20222122212209 has 2 divisors, whose sum is σ = 20222122212210. Its totient is φ = 20222122212208.

The previous prime is 20222122212059. The next prime is 20222122212239. The reversal of 20222122212209 is 90221222122202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18826009821025 + 1396112391184 = 4338895^2 + 1181572^2 .

It is a cyclic number.

It is not a de Polignac number, because 20222122212209 - 2⁸ = 20222122211953 is a prime.

It is not a weakly prime, because it can be changed into another prime (20222122212239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111061106104 + 10111061106105.

It is an arithmetic number, because the mean of its divisors is an integer number (10111061106105).

Almost surely, 2^{20222122212209} is an apocalyptic number.

It is an amenable number.

20222122212209 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222122212209 is an equidigital number, since it uses as much as digits as its factorization.

20222122212209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 29.

The spelling of 20222122212209 in words is "twenty trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred twelve thousand, two hundred nine".