20450222665241 has 2 divisors, whose sum is σ = 20450222665242. Its totient is φ = 20450222665240.

The previous prime is 20450222665199. The next prime is 20450222665247. The reversal of 20450222665241 is 14256622205402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19583908487641 + 866314177600 = 4425371^2 + 930760^2 .

It is a cyclic number.

It is not a de Polignac number, because 20450222665241 - 2⁶ = 20450222665177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20450222665247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10225111332620 + 10225111332621.

It is an arithmetic number, because the mean of its divisors is an integer number (10225111332621).

Almost surely, 2^{20450222665241} is an apocalyptic number.

It is an amenable number.

20450222665241 is a deficient number, since it is larger than the sum of its proper divisors (1).

20450222665241 is an equidigital number, since it uses as much as digits as its factorization.

20450222665241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 460800, while the sum is 41.

The spelling of 20450222665241 in words is "twenty trillion, four hundred fifty billion, two hundred twenty-two million, six hundred sixty-five thousand, two hundred forty-one".