551122212 has 24 divisors (see below), whose sum is σ = 1295207200. Its totient is φ = 182385216.

The previous prime is 551122207. The next prime is 551122217. The reversal of 551122212 is 212221155.

It is an interprime number because it is at equal distance from previous prime (551122207) and next prime (551122217).

It is not an unprimeable number, because it can be changed into a prime (551122217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163537 + ... + 166872.

Almost surely, 2^551122212 is an apocalyptic number.

It is an amenable number.

551122212 is an abundant number, since it is smaller than the sum of its proper divisors (744084988).

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

551122212 is a wasteful number, since it uses less digits than its factorization.

551122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330555 (or 330553 counting only the distinct ones).

The product of its digits is 400, while the sum is 21.

The square root of 551122212 is about 23475.9922474003. The cubic root of 551122212 is about 819.8781357667.

Adding to 551122212 its reverse (212221155), we get a palindrome (763343367).

The spelling of 551122212 in words is "five hundred fifty-one million, one hundred twenty-two thousand, two hundred twelve".