220020220109 has 2 divisors, whose sum is σ = 220020220110. Its totient is φ = 220020220108.

The previous prime is 220020220093. The next prime is 220020220111. The reversal of 220020220109 is 901022020022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197104921225 + 22915298884 = 443965^2 + 151378^2 .

It is a cyclic number.

It is not a de Polignac number, because 220020220109 - 2⁴ = 220020220093 is a prime.

Together with 220020220111, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220020225109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110010110054 + 110010110055.

It is an arithmetic number, because the mean of its divisors is an integer number (110010110055).

Almost surely, 2^220020220109 is an apocalyptic number.

It is an amenable number.

220020220109 is a deficient number, since it is larger than the sum of its proper divisors (1).

220020220109 is an equidigital number, since it uses as much as digits as its factorization.

220020220109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 220020220109 in words is "two hundred twenty billion, twenty million, two hundred twenty thousand, one hundred nine".