20002226449 has 2 divisors, whose sum is σ = 20002226450. Its totient is φ = 20002226448.

The previous prime is 20002226423. The next prime is 20002226473. The reversal of 20002226449 is 94462220002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19678478400 + 323748049 = 140280^2 + 17993^2 .

It is a cyclic number.

It is not a de Polignac number, because 20002226449 - 2¹¹ = 20002224401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20002226449.

It is not a weakly prime, because it can be changed into another prime (20002226249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001113224 + 10001113225.

It is an arithmetic number, because the mean of its divisors is an integer number (10001113225).

Almost surely, 2^20002226449 is an apocalyptic number.

It is an amenable number.

20002226449 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002226449 is an equidigital number, since it uses as much as digits as its factorization.

20002226449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 20002226449 in words is "twenty billion, two million, two hundred twenty-six thousand, four hundred forty-nine".