1220550142404 has 12 divisors (see below), whose sum is σ = 2847950332304. Its totient is φ = 406850047464.

The previous prime is 1220550142387. The next prime is 1220550142447. The reversal of 1220550142404 is 4042410550221.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 50856255922 + ... + 50856255945.

Almost surely, 2^{1220550142404} is an apocalyptic number.

It is an amenable number.

1220550142404 is an abundant number, since it is smaller than the sum of its proper divisors (1627400189900).

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

1220550142404 is a wasteful number, since it uses less digits than its factorization.

1220550142404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101712511874 (or 101712511872 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 1220550142404 its reverse (4042410550221), we get a palindrome (5262960692625).

The spelling of 1220550142404 in words is "one trillion, two hundred twenty billion, five hundred fifty million, one hundred forty-two thousand, four hundred four".