21020222059 has 2 divisors, whose sum is σ = 21020222060. Its totient is φ = 21020222058.

The previous prime is 21020222029. The next prime is 21020222081. The reversal of 21020222059 is 95022202012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21020222059 - 2¹⁹ = 21019697771 is a prime.

It is a super-3 number, since 3×21020222059³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (21020222029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10510111029 + 10510111030.

It is an arithmetic number, because the mean of its divisors is an integer number (10510111030).

Almost surely, 2^21020222059 is an apocalyptic number.

21020222059 is a deficient number, since it is larger than the sum of its proper divisors (1).

21020222059 is an equidigital number, since it uses as much as digits as its factorization.

21020222059 is an evil number, because the sum of its binary digits is even.

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

The spelling of 21020222059 in words is "twenty-one billion, twenty million, two hundred twenty-two thousand, fifty-nine".