223021020109 has 2 divisors, whose sum is σ = 223021020110. Its totient is φ = 223021020108.

The previous prime is 223021020083. The next prime is 223021020121. The reversal of 223021020109 is 901020120322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215416656900 + 7604363209 = 464130^2 + 87203^2 .

It is a cyclic number.

It is not a de Polignac number, because 223021020109 - 2⁵ = 223021020077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223021020109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223021020199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111510510054 + 111510510055.

It is an arithmetic number, because the mean of its divisors is an integer number (111510510055).

Almost surely, 2^223021020109 is an apocalyptic number.

It is an amenable number.

223021020109 is a deficient number, since it is larger than the sum of its proper divisors (1).

223021020109 is an equidigital number, since it uses as much as digits as its factorization.

223021020109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 223021020109 in words is "two hundred twenty-three billion, twenty-one million, twenty thousand, one hundred nine".