1000220022209 has 2 divisors, whose sum is σ = 1000220022210. Its totient is φ = 1000220022208.

The previous prime is 1000220022161. The next prime is 1000220022227. The reversal of 1000220022209 is 9022200220001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 999240144400 + 979877809 = 999620^2 + 31303^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000220022209 - 2¹² = 1000220018113 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1000220022299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500110011104 + 500110011105.

It is an arithmetic number, because the mean of its divisors is an integer number (500110011105).

Almost surely, 2^{1000220022209} is an apocalyptic number.

It is an amenable number.

1000220022209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000220022209 is an equidigital number, since it uses as much as digits as its factorization.

1000220022209 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 1000220022209 in words is "one trillion, two hundred twenty million, twenty-two thousand, two hundred nine".