2220220216897 has 2 divisors, whose sum is σ = 2220220216898. Its totient is φ = 2220220216896.

The previous prime is 2220220216883. The next prime is 2220220216939. The reversal of 2220220216897 is 7986120220222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1949028197776 + 271192019121 = 1396076^2 + 520761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2220220216897 is a prime.

It is not a weakly prime, because it can be changed into another prime (2220220219897) 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, 1110110108448 + 1110110108449.

It is an arithmetic number, because the mean of its divisors is an integer number (1110110108449).

Almost surely, 2^{2220220216897} is an apocalyptic number.

It is an amenable number.

2220220216897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220220216897 is an equidigital number, since it uses as much as digits as its factorization.

2220220216897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 2220220216897 in words is "two trillion, two hundred twenty billion, two hundred twenty million, two hundred sixteen thousand, eight hundred ninety-seven".