1220241571608 has 32 divisors (see below), whose sum is σ = 3050679332160. Its totient is φ = 406737136800.

The previous prime is 1220241571607. The next prime is 1220241571613. The reversal of 1220241571608 is 8061751420221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220241571607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396991 + ... + 1611857.

It is an arithmetic number, because the mean of its divisors is an integer number (95333729130).

Almost surely, 2^{1220241571608} is an apocalyptic number.

It is an amenable number.

1220241571608 is an abundant number, since it is smaller than the sum of its proper divisors (1830437760552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220241571608 is a wasteful number, since it uses less digits than its factorization.

1220241571608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256727 (or 1256723 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

Adding to 1220241571608 its reverse (8061751420221), we get a palindrome (9281992991829).

The spelling of 1220241571608 in words is "one trillion, two hundred twenty billion, two hundred forty-one million, five hundred seventy-one thousand, six hundred eight".