550221103140 has 24 divisors (see below), whose sum is σ = 1540619088960. Its totient is φ = 146725627488.

The previous prime is 550221103129. The next prime is 550221103141. The reversal of 550221103140 is 41301122055.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 550221103140.

It is not an unprimeable number, because it can be changed into a prime (550221103141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4585175800 + ... + 4585175919.

It is an arithmetic number, because the mean of its divisors is an integer number (64192462040).

Almost surely, 2^550221103140 is an apocalyptic number.

It is an amenable number.

550221103140 is an abundant number, since it is smaller than the sum of its proper divisors (990397985820).

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

550221103140 is a wasteful number, since it uses less digits than its factorization.

550221103140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9170351731 (or 9170351729 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 550221103140 its reverse (41301122055), we get a palindrome (591522225195).

The spelling of 550221103140 in words is "five hundred fifty billion, two hundred twenty-one million, one hundred three thousand, one hundred forty".