550221351512 has 32 divisors (see below), whose sum is σ = 1206465427200. Its totient is φ = 230325215904.

The previous prime is 550221351509. The next prime is 550221351541. The reversal of 550221351512 is 215153122055.

It is a super-2 number, since 2×550221351512² (a number of 24 digits) contains 22 as substring.

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, 114246212 + ... + 114251027.

It is an arithmetic number, because the mean of its divisors is an integer number (37702044600).

Almost surely, 2^550221351512 is an apocalyptic number.

It is an amenable number.

550221351512 is an abundant number, since it is smaller than the sum of its proper divisors (656244075688).

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

550221351512 is a wasteful number, since it uses less digits than its factorization.

550221351512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228497295 (or 228497291 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 32.

Adding to 550221351512 its reverse (215153122055), we get a palindrome (765374473567).

The spelling of 550221351512 in words is "five hundred fifty billion, two hundred twenty-one million, three hundred fifty-one thousand, five hundred twelve".