5521121512 has 16 divisors (see below), whose sum is σ = 10547426340. Its totient is φ = 2708474496.

The previous prime is 5521121453. The next prime is 5521121513. The reversal of 5521121512 is 2151211255.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5275697956 + 245423556 = 72634^2 + 15666^2 .

It is a super-2 number, since 2×5521121512² = 60965565500538332288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5521121513) 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 3 ways as a sum of consecutive naturals, for example, 6510333 + ... + 6511180.

Almost surely, 2^5521121512 is an apocalyptic number.

It is an amenable number.

5521121512 is a deficient number, since it is larger than the sum of its proper divisors (5026304828).

5521121512 is a wasteful number, since it uses less digits than its factorization.

5521121512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13021572 (or 13021568 counting only the distinct ones).

The product of its digits is 1000, while the sum is 25.

The square root of 5521121512 is about 74304.2496227504. The cubic root of 5521121512 is about 1767.4308660316.

Adding to 5521121512 its reverse (2151211255), we get a palindrome (7672332767).

The spelling of 5521121512 in words is "five billion, five hundred twenty-one million, one hundred twenty-one thousand, five hundred twelve".