1220332300217 has 2 divisors, whose sum is σ = 1220332300218. Its totient is φ = 1220332300216.

The previous prime is 1220332300207. The next prime is 1220332300237. The reversal of 1220332300217 is 7120032330221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1028011460281 + 192320839936 = 1013909^2 + 438544^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220332300217 - 2³⁰ = 1219258558393 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220332300207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610166150108 + 610166150109.

It is an arithmetic number, because the mean of its divisors is an integer number (610166150109).

Almost surely, 2^{1220332300217} is an apocalyptic number.

It is an amenable number.

1220332300217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220332300217 is an equidigital number, since it uses as much as digits as its factorization.

1220332300217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 1220332300217 its reverse (7120032330221), we get a palindrome (8340364630438).

The spelling of 1220332300217 in words is "one trillion, two hundred twenty billion, three hundred thirty-two million, three hundred thousand, two hundred seventeen".