2220534563209 has 2 divisors, whose sum is σ = 2220534563210. Its totient is φ = 2220534563208.

The previous prime is 2220534563147. The next prime is 2220534563263. The reversal of 2220534563209 is 9023654350222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1252042388809 + 968492174400 = 1118947^2 + 984120^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220534563209 - 2¹³ = 2220534555017 is a prime.

It is not a weakly prime, because it can be changed into another prime (2220534563509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110267281604 + 1110267281605.

It is an arithmetic number, because the mean of its divisors is an integer number (1110267281605).

Almost surely, 2^{2220534563209} is an apocalyptic number.

It is an amenable number.

2220534563209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220534563209 is an equidigital number, since it uses as much as digits as its factorization.

2220534563209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 2220534563209 in words is "two trillion, two hundred twenty billion, five hundred thirty-four million, five hundred sixty-three thousand, two hundred nine".