21220220059 has 2 divisors, whose sum is σ = 21220220060. Its totient is φ = 21220220058.

The previous prime is 21220220033. The next prime is 21220220137. The reversal of 21220220059 is 95002202212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21220220059 - 2¹³ = 21220211867 is a prime.

It is not a weakly prime, because it can be changed into another prime (21220220159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10610110029 + 10610110030.

It is an arithmetic number, because the mean of its divisors is an integer number (10610110030).

Almost surely, 2^21220220059 is an apocalyptic number.

21220220059 is a deficient number, since it is larger than the sum of its proper divisors (1).

21220220059 is an equidigital number, since it uses as much as digits as its factorization.

21220220059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The spelling of 21220220059 in words is "twenty-one billion, two hundred twenty million, two hundred twenty thousand, fifty-nine".