21000020220059 has 2 divisors, whose sum is σ = 21000020220060. Its totient is φ = 21000020220058.

The previous prime is 21000020219963. The next prime is 21000020220073. The reversal of 21000020220059 is 95002202000012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21000020220059 - 2¹² = 21000020215963 is a prime.

It is not a weakly prime, because it can be changed into another prime (21000020220359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10500010110029 + 10500010110030.

It is an arithmetic number, because the mean of its divisors is an integer number (10500010110030).

Almost surely, 2^{21000020220059} is an apocalyptic number.

21000020220059 is a deficient number, since it is larger than the sum of its proper divisors (1).

21000020220059 is an equidigital number, since it uses as much as digits as its factorization.

21000020220059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The spelling of 21000020220059 in words is "twenty-one trillion, twenty million, two hundred twenty thousand, fifty-nine".