1220241571607 has 2 divisors, whose sum is σ = 1220241571608. Its totient is φ = 1220241571606.

The previous prime is 1220241571589. The next prime is 1220241571613. The reversal of 1220241571607 is 7061751420221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220241571607 - 2⁶ = 1220241571543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220241579607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610120785803 + 610120785804.

It is an arithmetic number, because the mean of its divisors is an integer number (610120785804).

Almost surely, 2^{1220241571607} is an apocalyptic number.

1220241571607 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220241571607 is an equidigital number, since it uses as much as digits as its factorization.

1220241571607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 38.

Adding to 1220241571607 its reverse (7061751420221), we get a palindrome (8281992991828).

The spelling of 1220241571607 in words is "one trillion, two hundred twenty billion, two hundred forty-one million, five hundred seventy-one thousand, six hundred seven".