1220553041312 has 48 divisors (see below), whose sum is σ = 2705976854784. Its totient is φ = 536900160000.

The previous prime is 1220553041299. The next prime is 1220553041317. The reversal of 1220553041312 is 2131403550221.

It is not an unprimeable number, because it can be changed into a prime (1220553041317) 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, 55916189 + ... + 55938012.

It is an arithmetic number, because the mean of its divisors is an integer number (56374517808).

Almost surely, 2^{1220553041312} is an apocalyptic number.

It is an amenable number.

1220553041312 is an abundant number, since it is smaller than the sum of its proper divisors (1485423813472).

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

1220553041312 is a wasteful number, since it uses less digits than its factorization.

1220553041312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111854253 (or 111854245 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 1220553041312 its reverse (2131403550221), we get a palindrome (3351956591533).

The spelling of 1220553041312 in words is "one trillion, two hundred twenty billion, five hundred fifty-three million, forty-one thousand, three hundred twelve".