22020444461 has 2 divisors, whose sum is σ = 22020444462. Its totient is φ = 22020444460.

The previous prime is 22020444449. The next prime is 22020444487. The reversal of 22020444461 is 16444402022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20279468836 + 1740975625 = 142406^2 + 41725^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22020444461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22020444491) 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, 11010222230 + 11010222231.

It is an arithmetic number, because the mean of its divisors is an integer number (11010222231).

Almost surely, 2^22020444461 is an apocalyptic number.

It is an amenable number.

22020444461 is a deficient number, since it is larger than the sum of its proper divisors (1).

22020444461 is an equidigital number, since it uses as much as digits as its factorization.

22020444461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 22020444461 its reverse (16444402022), we get a palindrome (38464846483).

The spelling of 22020444461 in words is "twenty-two billion, twenty million, four hundred forty-four thousand, four hundred sixty-one".