550221112 has 32 divisors (see below), whose sum is σ = 1184133600. Its totient is φ = 234791424.

The previous prime is 550221109. The next prime is 550221121. The reversal of 550221112 is 211122055.

It is a self number, because there is not a number n which added to its sum of digits gives 550221112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8037 + ... + 34132.

It is an arithmetic number, because the mean of its divisors is an integer number (37004175).

Almost surely, 2^550221112 is an apocalyptic number.

It is an amenable number.

550221112 is an abundant number, since it is smaller than the sum of its proper divisors (633912488).

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

550221112 is a wasteful number, since it uses less digits than its factorization.

550221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42415 (or 42411 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 550221112 is about 23456.7924490967. The cubic root of 550221112 is about 819.4310508996.

Adding to 550221112 its reverse (211122055), we get a palindrome (761343167).

The spelling of 550221112 in words is "five hundred fifty million, two hundred twenty-one thousand, one hundred twelve".