5521512222 has 24 divisors (see below), whose sum is σ = 11966839560. Its totient is φ = 1839955920.

The previous prime is 5521512187. The next prime is 5521512247. The reversal of 5521512222 is 2222151255.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18904 + ... + 106772.

It is an arithmetic number, because the mean of its divisors is an integer number (498618315).

Almost surely, 2^5521512222 is an apocalyptic number.

5521512222 is an abundant number, since it is smaller than the sum of its proper divisors (6445327338).

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

5521512222 is a wasteful number, since it uses less digits than its factorization.

5521512222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91368 (or 91365 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 5521512222 is about 74306.8786990814. The cubic root of 5521512222 is about 1767.4725566328.

Adding to 5521512222 its reverse (2222151255), we get a palindrome (7743663477).

The spelling of 5521512222 in words is "five billion, five hundred twenty-one million, five hundred twelve thousand, two hundred twenty-two".