551230220012 has 6 divisors (see below), whose sum is σ = 964652885028. Its totient is φ = 275615110004.

The previous prime is 551230219949. The next prime is 551230220063. The reversal of 551230220012 is 210022032155.

It is a self number, because there is not a number n which added to its sum of digits gives 551230220012.

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 as a sum of consecutive naturals, namely, 68903777498 + ... + 68903777505.

It is an arithmetic number, because the mean of its divisors is an integer number (160775480838).

Almost surely, 2^551230220012 is an apocalyptic number.

It is an amenable number.

551230220012 is a deficient number, since it is larger than the sum of its proper divisors (413422665016).

551230220012 is a wasteful number, since it uses less digits than its factorization.

551230220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137807555007 (or 137807555005 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 551230220012 its reverse (210022032155), we get a palindrome (761252252167).

The spelling of 551230220012 in words is "five hundred fifty-one billion, two hundred thirty million, two hundred twenty thousand, twelve".