220221000569 has 2 divisors, whose sum is σ = 220221000570. Its totient is φ = 220221000568.

The previous prime is 220221000539. The next prime is 220221000581. The reversal of 220221000569 is 965000122022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181799904400 + 38421096169 = 426380^2 + 196013^2 .

It is a cyclic number.

It is not a de Polignac number, because 220221000569 - 2²⁰ = 220219951993 is a prime.

It is a super-2 number, since 2×220221000569² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220221000539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110110500284 + 110110500285.

It is an arithmetic number, because the mean of its divisors is an integer number (110110500285).

Almost surely, 2^220221000569 is an apocalyptic number.

It is an amenable number.

220221000569 is a deficient number, since it is larger than the sum of its proper divisors (1).

220221000569 is an equidigital number, since it uses as much as digits as its factorization.

220221000569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 220221000569 in words is "two hundred twenty billion, two hundred twenty-one million, five hundred sixty-nine", and thus it is an aban number.