20223220220209 has 2 divisors, whose sum is σ = 20223220220210. Its totient is φ = 20223220220208.

The previous prime is 20223220220087. The next prime is 20223220220251. The reversal of 20223220220209 is 90202202232202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20222361437184 + 858783025 = 4496928^2 + 29305^2 .

It is a cyclic number.

It is not a de Polignac number, because 20223220220209 - 2²¹ = 20223218123057 is a prime.

It is not a weakly prime, because it can be changed into another prime (20223220220909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111610110104 + 10111610110105.

It is an arithmetic number, because the mean of its divisors is an integer number (10111610110105).

Almost surely, 2^{20223220220209} is an apocalyptic number.

It is an amenable number.

20223220220209 is a deficient number, since it is larger than the sum of its proper divisors (1).

20223220220209 is an equidigital number, since it uses as much as digits as its factorization.

20223220220209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 20223220220209 in words is "twenty trillion, two hundred twenty-three billion, two hundred twenty million, two hundred twenty thousand, two hundred nine".