20450222665199 has 2 divisors, whose sum is σ = 20450222665200. Its totient is φ = 20450222665198.

The previous prime is 20450222665177. The next prime is 20450222665241. The reversal of 20450222665199 is 99156622205402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20450222665199 - 2³⁶ = 20381503188463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20450222665199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20450222661199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10225111332599 + 10225111332600.

It is an arithmetic number, because the mean of its divisors is an integer number (10225111332600).

Almost surely, 2^{20450222665199} is an apocalyptic number.

20450222665199 is a deficient number, since it is larger than the sum of its proper divisors (1).

20450222665199 is an equidigital number, since it uses as much as digits as its factorization.

20450222665199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4665600, while the sum is 53.

The spelling of 20450222665199 in words is "twenty trillion, four hundred fifty billion, two hundred twenty-two million, six hundred sixty-five thousand, one hundred ninety-nine".