2220220212209 has 2 divisors, whose sum is σ = 2220220212210. Its totient is φ = 2220220212208.

The previous prime is 2220220212107. The next prime is 2220220212233. The reversal of 2220220212209 is 9022120220222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1732045509184 + 488174703025 = 1316072^2 + 698695^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220220212209 - 2⁴⁰ = 1120708584433 is a prime.

It is not a weakly prime, because it can be changed into another prime (2220220212289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110110106104 + 1110110106105.

It is an arithmetic number, because the mean of its divisors is an integer number (1110110106105).

Almost surely, 2^{2220220212209} is an apocalyptic number.

It is an amenable number.

2220220212209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220220212209 is an equidigital number, since it uses as much as digits as its factorization.

2220220212209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 2220220212209 in words is "two trillion, two hundred twenty billion, two hundred twenty million, two hundred twelve thousand, two hundred nine".