551222430212 has 48 divisors (see below), whose sum is σ = 1045638538560. Its totient is φ = 253244393472.

The previous prime is 551222430193. The next prime is 551222430247. The reversal of 551222430212 is 212034222155.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6180923 + ... + 6269469.

It is an arithmetic number, because the mean of its divisors is an integer number (21784136220).

Almost surely, 2^551222430212 is an apocalyptic number.

It is an amenable number.

551222430212 is a deficient number, since it is larger than the sum of its proper divisors (494416108348).

551222430212 is a wasteful number, since it uses less digits than its factorization.

551222430212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90740 (or 90738 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 551222430212 its reverse (212034222155), we get a palindrome (763256652367).

The spelling of 551222430212 in words is "five hundred fifty-one billion, two hundred twenty-two million, four hundred thirty thousand, two hundred twelve".